climate change – Page 2 – Cabot Institute for the Environment blog

How do you manage a dam when there’s a tropical cyclone in Mozambique?

Posted on January 8, 2024January 8, 2024 by amanda.woodman-hardy

Mozambique dam

I’d never given a huge amount of thought of what a dam manager did until I visited Pequenos Libombos dam in Mozambique in October 2023. Standing at the dam, in hot conditions, listening to the lived experience of people who work on the ground and explain what they do during a tropical cyclone leaves you with more understanding than any peer reviewed journal article. Context is everything. It’s why visiting the countries I’m researching is something I do given the chance.

That’s what members of Bristol projects REPRESA (co-led by Prof Elizabeth Kendon at University of Bristol & UK Met Office, Dr Luis Artur from Eduardo Mondlane University and Prof Francois Engelbrecht from University of the Witwatersrand) and SALIENT (led by Dr Rachel James, University of Bristol) did in October. The REPRESA project aims to understand compound tropical cyclone risks, impacts of tropical cyclones and improve early warning systems in Mozambique, Malawi and Madagascar. Seeing the research alignment in projects, the SALIENT team also joined. The SALIENT project aims to improve the characterisation and communication of future climate information for national adaptation planning in southern Africa.

On the field trip day, we travelled to Pequenos Libombos dam and heard from a government official from the Vila De Boane Municipality. It was this day where I had my epiphany that if I ever left academia, dam management is not my calling. Providing water to the local population is the dams primary role and it provides 2 million people within Maputo Province with access to water. That is more than 4 times the population of Bristol.

The management of Pequenos Libombos dam is difficult as there are many other people and industries to consider and keep safe and happy when making decisions. From the businesses who want to use the dam’s water for industrial purposes to the farming communities that are reliant on the water for irrigation, and hydroelectricity companies that want to use the dam to create energy to the communities downstream that may be flooded if the dam releases water too quickly. The dam catchment is also shared with 2 of Mozambique’s neighbouring countries; eSwatini and South Africa, adding another element of complexity to the dams management.

Management must carefully balance both periods of water surplus and deficit and Maputo has experienced numerous extreme weather events in recent years. The 2015-2016 southern African drought impacted Central and Southern Mozambique and more recently the remnants of tropical cyclones in 2019, 2011, 2022 and 2023. During February 2023, Tropical Cyclone (TC) Freddy passed over Madagascar and southern Mozambique before returning a couple of weeks later to central Mozambique. It is thought to be the longest lived and have the highest accumulated cyclone energy of any cyclone on record, awaiting formal investigation from the World Meteorological Organization. Although TC Freddy didn’t directly pass over Pequenos Limbombos, its associated rainfall resulted in 250 mm of rainfall at the dam in one day. For context, the Bristol experiences 265mm rainfall, on average, in October, November and December combined. To avoid a breach of the dam, discharge was released at the maximum rate, which is more than 500 time more than normal.

Globally there is evidence that TCs and their impacts are being impacted by climate change. The frequency, intensity and storm tracks of TCs may be changing meanwhile, rising sea levels may lead to higher storm surges. Yet we know a limited amount about how tropical cyclones may act in a future with increased global sea surface and air temperatures. TCs in the Indian Ocean are particularly under researched, but recent and frequent events have highlighted the importance of understanding TCs in a changing climate.

After hearing about the vast amount of rain that fell in February 2023, we walk past the disused hydroelectric generator that was forced to cease operation during the drought as it was no longer economically viable. It really hammered home the complexities faced when trying to manage such a huge piece of infrastructure during extreme events. Similarly, it is clear why research projects like REPRESA and SALIENT are needed to understand how tropical cyclones may behave in the future and explore how early warning systems and climate change adaptation can be strengthened.

Mozambique dam

The human side of extreme weather

After the talk at Pequenos Libombos Dam, we visited the Municipality of Vila de Boane. Vila de Boane is located roughly 15 km downstream from the dam and the River Umbuluzi passes through the municipality. The municipality experienced large scale flooding after the dam was forced to increase to maximum discharge during the February 2023 rainfall.

Despite already hearing about TC’s Freddy’s impacts at the dam, they were not as focused on the human impact. The leader of the municipality compellingly described how 16,000 people were impacted overnight, 6000 people were displaced and 6 people sadly died. The community water pump was destroyed, leaving people without water for 3 months. The municipality leader said he had never seen that amount of water passing through the municipality at such high speed before. Meanwhile, money that had been budgeted for development initiatives, had to be redirected to repair and response. It was not clear if extra money had been sourced for the development initiatives.

It was also highlighted that the increased release of water from the dam occurred over night with little warning. The municipality had been told to expect “above normal” rainfall and to avoid being close to rivers and move farming machinery further inland. But as the municipality leader questioned, what does “above normal” actually mean? People will perceive this message differently, which will influence how they act upon it. As part of the SALIENT research project, I am researching how we best communicate future climate information to decision makers and this anecdote will stay with me. It’s clear that improved communications are needed in both weather and climate services, something REPRESA is also aiming to research further.

Reflections and collaboration

After hearing about the vast amount of impacts the flooding had on Villa de Boane, we waited for our transport back to Maputo under the shade as it was too hot to stand in the sun. It was clear everyone from the REPRESA and SALIENT teams, both physical scientists and social scientists, had taken a lot from the field day. There was discussion about what the research should consider as well as the different angles that could be taken. It also fostered collaboration, SALIENT team member, Alan-Kennedy Asser, is providing the REPRESA team with analysis of precipitation trends from a multiple ensembles of climate models to characterise the range in future projections over the region. Meanwhile I spoke with some REPRESA team members in more depth about future climate information and will be providing risk communication training session in the future.

My personal key take away is that understanding the context and hearing the lived experiences of people working and living with extreme weather events enriches me as a researcher. Similarly, collaborating with researchers and practitioners on different projects enhances your work by providing questions and inputs from different standpoints. And finally, I’m too indecisive a person to ever be a good dam manager.

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This blog is written by Cabot Institute for the Environment member, Dr Ailish Craig, School of Geographical Sciences, University of Bristol with contributions from Dr Alan Kennedy-Asser, School of Geographical Sciences, University of Bristol and Dr Rachel James, School of Geographical Sciences, University of Bristol.

Climate summits are too big and key voices are being crowded out – here’s a better solution

Posted on December 18, 2023December 18, 2023 by amanda.woodman-hardy

Every year, the official UN climate summits are getting bigger. In 2021 at COP26 in Glasgow there were around 40,000 participants, COP27 in 2022 in Sharm el-Sheikh had 50,000.

But this year blew all previous records out of the water. More than 97,000 participants had badges to attend COP28 in Dubai in person. This raises questions about who is attending COPs and what they are doing there, who gets their voices heard and, on a more practical note, how this affects the negotiations.

For those not familiar with the COP setup, there are two “worlds” that exist side by side. One is the negotiations, which are run under the UN’s climate change body the UNFCCC, and the other is a very long list of talks and social events. These take place in pavilion exhibition spaces and are open to anyone attending, in contrast to the negotiations which are often closed to the media and sometimes closed to observers.

There is a stark difference between these worlds, with pavilion spaces featuring elaborate and inviting settings, particularly if they are well funded, while negotiations often happen in windowless rooms.

A growing sense exists among those invested in the “traditional” side of the COPs that many delegates have no intention of observing the climate talks themselves, and instead spend their time networking in the pavilions.

Indigenous people visiting COP28 from Brazilian Amazon.

In terms of who attends, at COP28 there were around 25,000 “party” (country) delegates, 27,000 “party overflow” delegates (usually guests, sponsors, or advisors), 900 UNFCCC secretariat members (who run the COPs), 600 “UN overflow”, and 1,350 from “specialised agencies” such as the World Health Organization or World Bank and their overflows. That makes up just under 55,000 or half of the attendees.

The rest are intergovernmental organisations (2,000), UN Global Climate Action award winners (600), host country guests (5,000), temporary passes (500 – many issued to big private companies), NGOs (14,000 – including one of us, as part of a university delegation), and media (4,000). This is according to the UNFCCC, which places the number of attendees closer to 80,000.

The “party overflow” badges are particularly concerning. The number of delegates connected to the oil and gas industries has quadrupled from last year to around 2,400, many of whom were invited as part of country delegations. As another example, meat industry representatives became part of Brazil’s delegation, while dairy associations organised official COP side events. In the official programme, the Energy and Industry, Just Transition, and Indigenous Peoples Day featured more events by industrial giant Siemens than by indigenous people.

Practically speaking, huge numbers cause problems – this year for example there were delayed meetings, long queues, and several negotiation rooms were beyond capacity with observers and even party delegates asked to limit their numbers and leave.

Even with access to an observer badge, there is little one can contribute to negotiations. The negotiating positions are decided long before the COPs begin, and observers are rarely permitted to speak in negotiations. In addition, a lot of the negotiations are either conducted behind closed doors (called “informal-informals” with no access for the UN or observers) or even in the corridors, where negotiators meet informally to cement positions. The negotiations you can (silently) observe are usually a series of prepared statements, rather than a discussion.

So if COPs are too big and bloated, what is the alternative?

Smaller and more online

One alternative is being a virtual delegate, which one of us tried. This year’s COP trialled live streams and recordings of some of the negotiations, side events and press conferences on an official UNFCCC virtual platform for the first time. The option is a long overdue, but welcome addition. It reduces travel emissions and makes it more accessible, for instance for people with caring responsibilities and others who are unable to travel (or perhaps who refuse to fly).

Some technical teething problems are to be expected. Yet when we queried why the virtual platform didn’t livestream many of the sessions, the COP28 support team pointed us to the official COP28 app. Our employer, the University of Bristol, had advised us not to download the app because of security concerns, which again raises serious issues around transparency and accountability in UNFCCC spaces, as well as freedom of speech and assembly in COP host countries.

Not being there in person also has downsides. As a virtual observer, it’s harder to judge the atmosphere in a negotiation room, to stumble upon and observe spontaneous negotiations happening in corridors, or participate in or observe protests. While indigenous voices were rarely heard in the livestreamed negotiations and events, the Indigenous People’s Pavilion offered a chance to hear them – but only if you were in Dubai. The virtual alternative is a good option to observe negotiations, but it means missing out on some of the civil society lifeblood of COP.

Another option is to limit access to COPs – for example, limiting the in-person negotiations only to the most vital participants. Party tickets could be limited, with lobbyists from fossil fuel industries tightly controlled and priority given to climate victims, indigenous communities and underrepresented countries. Side events and pavilions could take place a few months before the COPs, increasing the chances of influencing negotiations, since positions are cemented early. There is no reason these only need to happen in one place once a year, there could be regional meetups in between, allowing for formal contact more often.

These issues of access, transparency and influence have serious implications on negotiation outcomes and climate action. After undergoing various draft iterations that offered options ranging from “no text” to “phasing out” or “down” fossil fuels, this year’s final agreement does not include a commitment to phasing out. This watered-down agreement reflects the inability of indigenous peoples and the most climate vulnerable countries to meaningfully participate in the negotiations – future COPs must trim down to make their voices heard.

This blog is written by Cabot Institute for the Environment members, Drs Alix Dietzel, Senior Lecturer in Climate Justice, University of Bristol and Katharina Richter, Lecturer in Climate Change, Politics and Society, University of Bristol.

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Disinformation campaigns are undermining democracy. Here’s how we can fight back

Posted on November 29, 2023 by amanda.woodman-hardy

Misinformation is debated everywhere and has justifiably sparked concerns. It can polarise the public, reduce health-protective behaviours such as mask wearing and vaccination, and erode trust in science. Much of misinformation is spread not by accident but as part of organised political campaigns, in which case we refer to it as disinformation.

But there is a more fundamental, subversive damage arising from misinformation and disinformation that is discussed less often.

It undermines democracy itself. In a recent paper published in Current Opinion in Psychology, we highlight two important aspects of democracy that disinformation works to erode.

The integrity of elections

The first of the two aspects is confidence in how power is distributed – the integrity of elections in particular.

In the United States, recent polls have shown nearly 70% of Republicans question the legitimacy of the 2020 presidential election. This is a direct result of disinformation from Donald Trump, the loser of that election.

Democracy depends on the people knowing that power will be transferred peacefully if an incumbent loses an election. The “big lie” that the 2020 US election was stolen undermines that confidence.

Depending on reliable information

The second important aspect of democracy is this – it depends on reliable information about the evidence for various policy options.

One reason we trust democracy as a system of governance is the idea that it can deliver “better” decisions and outcomes than autocracy, because the “wisdom of crowds” outperforms any one individual. But the benefits of this wisdom vanish if people are pervasively disinformed.

Disinformation about climate change is a well-documented example. The fossil fuel industry understood the environmental consequences of burning fossil fuels at least as early as the 1960s. Yet they spent decades funding organisations that denied the reality of climate change. This disinformation campaign has delayed climate mitigation by several decades – a case of public policy being thwarted by false information.

We’ve seen a similar misinformation trajectory in the COVID-19 pandemic, although it happened in just a few years rather than decades. Misinformation about COVID varied from claims that 5G towers rather than a virus caused the disease, to casting doubt on the effectiveness of lockdowns or the safety of vaccines.

The viral surge of misinformation led to the World Health Organisation introducing a new term – infodemic – to describe the abundance of low-quality information and conspiracy theories.

A common denominator of misinformation

Strikingly, some of the same political operatives involved in denying climate change have also used their rhetorical playbook to promote COVID disinformation. What do these two issues have in common?

One common denominator is suspicion of government solutions to societal problems. Whether it’s setting a price on carbon to mitigate climate change, or social distancing to slow the spread of COVID, contrarians fear the policies they consider to be an attack on personal liberties.

An ecosystem of conservative and free-market think tanks exists to deny any science that, if acted on, has the potential to infringe on “liberty” through regulations.

There is another common attribute that ties together all organised disinformation campaigns – whether about elections, climate change or vaccines. It’s the use of personal attacks to compromise people’s integrity and credibility.

Election workers in the US were falsely accused of committing fraud by those who fraudulently claimed the election had been “stolen” from Trump.

Climate scientists have been subject to harassment campaigns, ranging from hate mail to vexatious complaints and freedom-of-information requests. Public health officials such as Anthony Fauci have been prominent targets of far-right attacks.

The new frontier in attacks on scientists

It is perhaps unsurprising there is now a new frontier in the attacks on scientists and others who seek to uphold the evidence-based integrity of democracy. It involves attacks and allegations of bias against misinformation researchers.

Such attacks are largely driven by Republican politicians, in particular those who have endorsed Trump’s baseless claims about the 2020 election.

The misinformers are seeking to neutralise research focused on their own conduct by borrowing from the climate denial and anti-vaccination playbook. Their campaign has had a chilling effect on research into misinformation.

How do we move on from here?

Psychological research has contributed to legislative efforts by the European Union, such as the Digital Services Act or Code of Practice, which seek to make democracies more resilient against misinformation and disinformation.

Research has also investigated how to boost the public’s resistance to misinformation. One such method is inoculation, which rests on the idea people can be protected against being misled if they learn about the rhetorical techniques used to mislead them.

In a recent inoculation campaign involving brief educational videos shown to 38 million citizens in Eastern Europe, people’s ability to recognise misleading rhetoric about Ukrainian refugees was frequently improved.

It remains to be seen whether these initiatives and research findings will be put to use in places like the US, where one side of politics appears more threatened by research into misinformation than by the risks to democracy arising from misinformation itself.

We’d like to acknowledge our colleagues Ullrich Ecker, Naomi Oreskes, Jon Roozenbeek and Sander van der Linden who coauthored the journal article on which this article is based.

Stephan Lewandowsky, Chair of Cognitive Psychology, University of Bristol and John Cook, Senior Research Fellow, Melbourne School of Psychological Sciences, The University of Melbourne

This article is republished from The Conversation under a Creative Commons license. Read the original article.

The cracks are where the light gets in – studying vulnerabilities in Elite Incumbent Resistance at COP26

Posted on November 20, 2023 by amanda.woodman-hardy

Elites are often rightly blamed for resisting bold action needed to tackle climate change. But what if elite alliances are more fragile than commonly assumed? What if we consider Elite Incumbent Resistance – to transitions in food, energy and finance – not as a homogenous bloc of resistance towards sustainability transitions, but instead as made up of temporary, fragile alliances held together in ways that might be amenable to disruption?

A group of interdisciplinary researchers brought together by the British Academy’s Virtual Sandpit on Just Transition, set out to explore this question by piloting a new approach to studying the COP26 Climate Summit.

Starting Points

This thought experiment emerged from a critique of existing International Political Economy literature on climate negotiations which tends to focus on intense resistance to transitions to sustainable societies from elite groups benefiting from the status quo. This approach tends to homogenise incumbent elite-alliances, making them appear more robust than they really are. We were curious about what would happen if we instead focused on the vulnerabilities inherent in any alliances and how they are maintained and undone in climate negotiations.

As tools to help us think this through, we firstly turned to Laclau and Mouffe’s work on hegemony and socialist strategy. This is an old text but still relevant as it shows how all alliances are built on what they call relations of ‘equivalence’, which means, in simple terms, coming to a compromise about what key words (‘sustainable growth’ anyone?) mean. These equivalences, however, are always temporary and can, in theory, be unsettled.

Secondly, we drew on performance theory to highlight the importance of physical, visual and material performances, like UNFCCC COPs, for creating and maintaining the impression of elite unity and competence in managing global public goods like the climate.

Thirdly, Science and technology studies helped us to consider how to spot opportunities to facilitate rapid transitions by identifying how changing material circumstances bridge differences between previously opposed groups. Equally, the multiple-level perspective, drew our attention to how changing conditions at regime, landscape and local levels might have the opportunity to both disrupt existing alliances and bring seemingly opposed groups together through shared interests.

With these theories, we set out to explore whether we could find cracks in elite forums at COP, explore whether there were strains in these performances and if we could identify potentially new alliances that might come out of opening up these cracks.

What happens next is described in the rest of this blog and illustrated with cartoons we developed to capture the essence of what we came to think of as the highly vulnerable performances of elite power at COP26.

Performing the COP

What struck us about COP26 was that it was not a coherent space managed and led by a single elite. Instead, it had a multiple, fragmented nature. COP is perhaps best thought of as a bewildering circus of loosely connected activities masquerading as a single event.

This is not surprising. A COP meeting gathers multiple groups with contradictory aims: simultaneously a forum of intergovernmental negotiations, a trade fair for corporate partners and a site of civil society participation and protests.

What is also noticeable, however, is that this fragmentation is hierarchically organised through complex procedures of inclusion and exclusion (Blue Zones, Green Zones, Access Cards, T shirts) with different levels of access accorded to different groups depending on their symbolic importance for validating the COP performance of an inclusive and diverse forum (recognised and acceptable scientists, a selection of key green activists and representatives of youth indigenous peoples). This is stage managed in such a way as to produce a performance that reassures a public watching via television and social media that there is a coherent plan for averting climate disaster.

Cartoon of a clown made of two children standing on top of each other, standing at the entrance to a circus talking to two other children saying "of course we're a real-life legitimate, trustworthy, responsible, ticket-taking adult".

The hierarchical format of the COP, most clearly expressed through the separation between the Green and Blue Zones, maintains the impression of there being a central heart of power, where decisions are made and the global response is organised. Such an impression produces the performance of the COP as the key forum for climate action, to which interested parties must desire access, and in which those with access must desire ever greater access to the ever elusive and ever more exclusive circle of decision-making. Despite this, the event was characterised in fact by a pluralisation of decision-making activities – by side dinners for particular industries, by one to one meetings, bilateral agreements, and encounters between civil society, academic, policy, media and industry groups.

From this perspective, the ultimate discursive illusion of the COP is that there is a central seat of power, of the governing and corporate elites that come together in a single place to take decisive actions to avert climate change disaster. The selective inclusion of groups like youth, indigenous peoples and green civil society organisations in particular, served to bolster this illusion – creating an impression of participation while reducing them to symbolic speeches and side-events. We call this co-option because, in reality, such groups and individuals appear to have had almost no influence on the outcomes of COP, the Glasgow Climate Pact or the agreement of the Paris Rulebook.

A circus master standing on a stand talking to people saying "everyone has a role here! your role is to stand 3 miles away, quietly".

Intra-elite cracks and potential for new alliances

Drawing on Laclau and Mouffe, we mapped out the discursive nodal points that created the equivalences that allowed the highly fractured parties in the discussions to sustain the perception of elite consensus on addressing the climate crisis. Unsurprisingly, they were vague. All organised around the major overarching nodal point – the climate model itself. The key nodal points of the official COP26 were ‘keeping one degree alive’ and ‘achieving net-zero’, with vague references to ‘technological solutions’ and ‘nature-based solutions’ as means of achieving this. These were reiterated in a variety of different formulations across all aspects of the COP – from the public-facing leaders’ stages to online materials to banners and marketing materials throughout the events. A second critical overarching nodal point was the false universalism that diffused responsibility from specific actors and instead presented this as a shared global challenge – the repeated marketing phrases ‘we are all in this together’ and ‘we have to turn anger into action’. This papered over the intra-elite cracks that would emerge between the winners and losers of any genuinely decisive action.

Cartoon of balloons with environmental slogans on being popped with a person saying "your plan was more than just hot air though, right?"

Given the intentional ambiguity of these discursive nodal points, there is unsurprisingly growing debate about what they actually mean, and signs of intra-elite cracks emerging around them. This creates opportunities for civil society groups and others wanting to build alternative strategies to combat the climate emergency.

An example of such a crack is evident in the concept of ‘nature-based solutions’ and what it can mean to different incumbent elite factions. The fossil fuel industry is happy to endorse this phrase, provided that it allows offsets from carbon emissions through reforestation to reach ‘net-zero’. Such an interpretation of nature-based solutions would in practice mean doubling down on current practices which have led to the displacement of indigenous peoples and peasants to make room for offsetting plantations. On the other hand, the insurance industry, which routinely underwrites extractive projects, has grown increasingly aware of its exposure to climate change. We can see an emerging rift between them and their long time fossil fuel partners as they begin to demand that nature-based solutions involve the preservation of biodiverse nature.

At COP we saw some examples of civil society groups seeking to re-articulate and open up the contestation in terms such as ‘nature-based solutions’ and ‘we are all in this together’ as a way of disrupting intra elite relationships. For example, we saw joint activities between the insurance giant Aviva, civil society group Global Canopy and representatives of Amazonian Indigenous peoples speaking of their partnership in identifying companies contributing to deforestation and divesting from them. Such activities take these key terms and make visible the differences in how they might be interpreted in ways that can either enable the preservation of climate destroying practices or empower current custodians of biodiverse nature. Such events successfully undermine the performance of consensus in events such as COP and outline routes towards rearticulating these key terms in ways that allow new alliances to form between marginalised and elite groups.

Reflections

Our team started out with hunches that there were cracks in elite incumbent resistance to serious actions to tackle climate change. What we came away with after using these theoretical tools to make sense of the COP was less a sense of cracks in alliances, and instead a sense of profound fragmentation, disconnection between hugely varied actors and a desperate struggle to create the impression of coherence and the successful performance of control. We were left wondering whether the search for ever greater access to inner sanctums of elite power that seemed to be ever more elusive would be a wise strategy for actors wishing to shift the debate. Instead, starting from an assumption of heterogeneity and disorganisation, of failed performances and illusory central points of power would suggest there are opportunities in thinking horizontally, organising in multiple sites, pluralising and making visible the heterogeneity of decision-making moments. At the same time, rather than simply naming the over-familiar discursive nodal points as ‘blah blah blah’ – recognising them precisely as a key means of organising alliances, the challenge may be to occupy, interpret and reinterpret these terms. If we are all in it together – let’s make it all of us, if we are looking for nature-based solutions – let’s have a conversation about the different meanings of nature and what we are looking for a solution to.

In other words – our sense is that it no longer makes sense to only search for cracks in elite incumbent resistance. But instead – there is merit in starting from the assumption that it is a miracle that alliances are made at all, and working creatively and persuasively to make visible the divides that sit both beneath the performance of events like COP, and the disagreements that sit within the language of consensus. From that, new alliances might be made.

References

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Callon, M, Lascoumes, P and Barthe, Y (2001). Acting in an Uncertain World. An Essay on Technical Democracy. Boston Mass: MIT Press.

Ford, A. and Newell, P. (2021) Regime resistance and accommodation: Toward a neo-Gramscian perspective on energy transitions, Energy Research & Social Science, 79.

Goffman, E. (1959). The presentation of self in everyday life. Garden City, NY:Doubleday.

Golnaraghi, M et. al. (2021) Climate Change Risk Assessment for the Insurance Industry: A holistic decision-making framework and key considerations for both sides of the balance sheet, The Geneva Association: https://www.genevaassociation.org/sites/default/files/research-topics-document-type/pdf_public/climate_risk_web_final_250221.pdf Last accessed on 06.10.2022.

Krauss, A.D. (2021) ‘Chapter 16 – Effect of climate change on the insurance sector’, in ed. Letcher T.M., The Impacts of Climate Change: A Comprehensive Study of Physical, Biophysical, Social, and Political Issues, Bath, UK: Laurel House, Stratton on the Fosse: 397-436.

Laclau, E. and Mouffe, C. (2001). Hegemony and Socialist Strategy: Towards A Radical Democratic Politics. NY: Verso.

Marres N. The Issues Deserve More Credit: Pragmatist Contributions to the Study of Public Involvement in Controversy. Social Studies of Science. 2007; 37(5): 759-780.

Newell, P. (2021). Power Shift: The Global Political Economy of Energy Transitions. Cambridge: Cambridge University Press.

Newell, P., & Mulvaney, D. (2013). The political economy of the ‘just transition’. The Geographical Journal, 170(2): 132–140.

Oxfam (2021) ‘Net zero’ carbon targets are dangerous distractions from the priority of cutting emissions says new Oxfam report. Press Releases, 03.08.2021: https://www.oxfam.org/en/press-releases/net-zero-carbon-targets-are-dangerous-distractions-priority-cutting-emissions-says Last accessed on 06.10.2022.

Paterson, M (2001) Risky Business: Insurance Companies in Global Warming Politics, Global Environmental Politics, 1(4): 18–42.

Swilling M. & Annecke E. (2012). Just transitions: explorations of sustainability in an unfair world. Claremont, South Africa, UCT Press.

Turnheim, B. and Sovacool B.K. (2020) Forever stuck in old ways? Pluralising incumbencies in sustainability transitions, Environmental Innovation and Societal Transitions. 35: 180-184.

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The authors of this blog have worked on this as “the Carbon Elites Collective”, which includes Aslak-Antti Oksanen (Bristol, SPAIS), Keri Facer (Bristol, School of Education), Peter Newell (University of Sussex), Pablo Suarez (The Red Cross/Red Crescent), María Estrada Fuentes (Royal Holloway), Jeremy Brice (University of Manchester), Antonia Layard (University of Oxford) and Kendra Allenby (freelance cartoonist).

Loss and Damage: fears, vulnerabilities, emotions and compensation in the face of climate change

Posted on November 1, 2023November 1, 2023 by amanda.woodman-hardy

Artwork by Andy Council on loss and damage. Image credit: Amanda Woodman-Hardy. View the artwork in high resolution.

In July 2023, the Cabot Institute for the Environment and Universities UK Climate Network hosted an event focusing on loss and damage.

Loss and damage captures the adverse impacts and irreversible harm caused by climate-related events and changes, particularly in vulnerable and disadvantaged communities. It recognizes that some effects of climate change cannot be fully mitigated or adapted to, leading to tangible and intangible losses such as loss of lives, livelihoods, cultural heritage, and ecosystems.

Loss and damage has become a significant topic in international climate negotiations, with discussions focusing on how to address and compensate for unavoidable consequences of climate change, often in the context of financial support and liability for those responsible.

Participants at the workshop were encouraged to speak openly about their emotions around climate change losses and what it might look like to be compensated. They spoke openly and with great vulnerability about what they feared and hoped for.

post it notes denoting peoples feelings around loss and damage

Artist Andy Council was on hand to take notes and created a stunning piece of art to reflect our conversations – centering around greed, grief, injustice, and anger.

post it notes about compensation with regards to loss and damage

Andy said ‘When I attended the event, I heard different thoughts on the issues raised and I wanted to get as many of these into my artwork piece as possible. I wanted to get the different ideas as smaller components into a larger image, a symbol: the dollar sign. It seemed relevant as unfortunately things come down to money – profit from industry over climate change and habitat loss, money put towards preserving prestigious artefacts, less industrialised nations bearing the brunt of climate change and the funding to compensate for the loss and damage. The artwork is overall quite dark and gloomy, however there are elements of hope within the piece with images of resistance and preservation of the world’s natural landscape.’

Artist Andy Council looking at post it notes on the floor — Artist Andy Council reading post it notes.

Art has the unique ability to transcend language and cultural barriers, making it a powerful tool for raising awareness and fostering understanding of complex global issues like loss and damage. Climate change often feels abstract and distant, but through art, it can become tangible and emotionally resonant. Art can also convey the urgency and gravity of the issue, bridging gaps between different communities and fostering a sense of shared responsibility.

The UK Climate network said ‘we are keen to make sure that our research connects to people and action outside the academic world. It was great to see Dr Alix Dietzel engaging the public on this topic and bringing the conversation to life through art.’

COP27 established a Loss and Damage Fund that aims to provide financial assistance to nations most vulnerable and impacted by the effects of climate change. However, the UNFCCC has not yet specified which countries should contribute to the fund, and who will be eligible to receive help. As we head into COP28, all eyes will be on the negotiations to see whether these aspects of the fund can be nailed down.

Are you a journalist looking for climate experts for COP28? We’ve got you covered

Posted on October 30, 2023November 28, 2023 by amanda.woodman-hardy

We’ve got lots of media trained climate change experts. If you need an expert for an interview, here is a list of our experts you can approach. All media enquiries should be made via Victoria Tagg, our dedicated Media and PR Manager at the University of Bristol.

Email victoria.tagg@bristol.ac.uk or call +44 (0)117 428 2489.

Climate change / climate emergency / climate science / climate-induced disasters

Dr Eunice Lo – expert in changes in extreme weather events such as heatwaves and cold spells, and how these changes translate to negative health outcomes including illnesses and deaths. Follow on Twitter/X @EuniceLoClimate.

Professor Daniela Schmidt – expert in the causes and effects of climate change on marine systems. Dani is also a Lead Author on the IPCC reports.

Dr Katerina Michalides – expert in drylands, drought and desertification and helping East African rural communities to adapt to droughts and future climate change. Follow on Twitter/X @_kmichaelides.

Professor Dann Mitchell – expert in how climate change alters the atmospheric circulation, extreme events, and impacts on human health. Dann is also a Met Office Chair. Follow on Twitter/X @ClimateDann.

Professor Dan Lunt – expert on past climate change, with a focus on understanding how and why climate has changed in the past and what we can learn about the future from the past. Dan is also a Lead Author on IPCC AR6. Follow on Twitter/X @ClimateSamwell.

Professor Jonathan Bamber – expert on the impact of melting land ice on sea level rise (SLR) and the response of the ocean to changes in freshwater forcing. Follow on Twitter/X @jlbamber

Professor Paul Bates CBE – expert in the science of flooding, risk and reducing threats to life and economic losses worldwide. Follow on Twitter/X @paul_d_bates

Dr Matt Palmer – expert in sea level and ocean heat content at the Met Office Hadley Centre and University of Bristol. Follow on Twitter/X @mpclimate.

Professor Guy Howard – expertise in building resilience and supporting adaptation in water systems, sanitation, health care facilities, and housing. Expert in wider infrastructure resilience assessment.

Net Zero / Energy / Renewables

Dr Caitlin Robinson – expert on energy poverty and energy justice and also in mapping ambient vulnerabilities in UK cities. Caitlin will be virtually attending COP28. Follow on Twitter/X @CaitHRobin.

Professor Philip Taylor – Expert in net zero, energy systems, energy storage, utilities, electric power distribution. Also Pro-Vice Chancellor at the University of Bristol. Follow on Twitter/X @rolyatlihp.

Dr Colin Nolden – expert in sustainable energy policy, regulation and business models and interactions with secondary markets such as carbon markets and other sectors such as mobility. Colin will be in attendance in the Blue Zone at COP28 during week 2.

Professor Charl Faul – expert in novel functional materials for sustainable energy applications e.g. in CO2 capture and conversion and energy storage devices. Follow on Twitter/X @Charl_FJ_Faul.

Climate finance / Loss and damage

Dr Rachel James – Expert in climate finance, damage, loss and decision making. Also has expertise in African climate systems and contemporary and future climate change. Follow on Twitter/X @_RachelJames.

Dr Katharina Richter – expert in decolonial environmental politics and equitable development in times of climate crises. Also an expert on degrowth and Buen Vivir, two alternatives to growth-based development from the Global North and South. Katarina will be virtually attending COP28. @DrKatRichter.

Climate justice

Dr Alix Dietzel – climate justice and climate policy expert. Focusing on the global and local scale and interested in how just the response to climate change is and how we can ensure a just transition. Alix will be in attendance in the Blue Zone at COP28 during week 1. Follow on Twitter/X @alixdietzel.

Dr Ed Atkins – expert on environmental and energy policy, politics and governance and how they must be equitable and inclusive. Also interested in local politics of climate change policies and energy generation and consumption. Follow on Twitter/X @edatkins_.

Dr Karen Tucker – expert on colonial politics of knowledge that shape encounters with indigenous knowledges, bodies and natures, and the decolonial practices that can reveal and remake them. Karen will be in attending the Blue Zone of COP28 in week 2.

Climate change and health

Dr Dan O’Hare – expert in climate anxiety and educational psychologist. Follow on Twitter/X @edpsydan.

Professor Guy Howard – expert in influence of climate change on infectious water-related disease, including waterborne disease and vector-borne disease.

Professor Rachael Gooberman-Hill – expert in health research, including long-term health conditions and design of ways to support and improve health. @EBIBristol (this account is only monitored in office hours).

Youth, children, education and skills

Dr Dan O’Hare – expert in climate anxiety in children and educational psychologist. Follow on Twitter/X @edpsydan.

Dr Camilla Morelli – expert in how children and young people imagine the future, asking what are the key challenges they face towards the adulthoods they desire and implementing impact strategies to make these desires attainable. Follow on Twitter/X @DrCamiMorelli.

Dr Helen Thomas-Hughes – expert in engaging, empowering, and inspiring diverse student bodies as collaborative environmental change makers. Also Lead of the Cabot Institute’s MScR in Global Environmental Challenges. Follow on Twitter/X @Researchhelen.

Professor Daniela Schmidt – expert in the causes and effects of climate change on marine systems. Dani is also a Lead Author on the IPCC reports. Also part of the Waves of Change project with Dr Camilla Morelli, looking at the intersection of social, economic and climatic impacts on young people’s lives and futures around the world.

Climate activism / Extinction Rebellion

Dr Oscar Berglund – expert on climate change activism and particularly Extinction Rebellion (XR) and the use of civil disobedience. Follow on Twitter @berglund_oscar.

Land / Nature / Food

Dr Jo House – expert on land and climate interactions, including emissions of carbon dioxide from land use change (e.g. deforestation), climate mitigation potential from the land (e.g. afforestation, bioenergy), and implications of science for policy. Previously Government Office for Science’s Head of Climate Advice. Follow on Twitter @Drjohouse.

Professor Steve Simpson – expert marine biology and fish ecology, with particular interests in the behaviour of coral reef fishes, bioacoustics, effects of climate change on marine ecosystems, conservation and management. Follow on Twitter/X @DrSteveSimpson.

Dr Taro Takahashi – expert on farming, livestock production systems as well as programme evaluation and general equilibrium modelling of pasture and livestock-based economies.

Dr Maria Paula Escobar-Tello – expert on tensions and intersections between livestock farming and the environment.

Air pollution / Greenhouse gases

Dr Aoife Grant – expert in greenhouse gases and methane. Set up a monitoring station at Glasgow for COP26 to record emissions.

Professor Matt Rigby – expert on sources and sinks of greenhouse gases and ozone depleting substances. Follow on Twitter @TheOtherMRigby.

Professor Guy Howard – expert in contribution of waste and wastewater systems to methane emissions in low- and middle-income countries

Plastic and the environment

Dr Charlotte Lloyd – expert on the fate of chemicals in the terrestrial environment, including plastics, bioplastics and agricultural wastes. Follow on Twitter @DrCharlLloyd.

Cabot Institute for the Environment at COP28

We will have three media trained academics in attendance at the Blue Zone at COP28. These are: Dr Alix Dietzel (week 1), Dr Colin Nolden (week 2) and Dr Karen Tucker (week 2). We will also have two academics attending virtually: Dr Caitlin Robinson and Dr Katharina Richter.

Read more about COP on our website at https://bristol.ac.uk/cabot/what-we-do/projects/cop/
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This blog was written by Amanda Woodman-Hardy, Communications and Engagement Officer at the Cabot Institute for the Environment. Follow on Twitter @Enviro_Mand and @cabotinstitute.

Watch our Cabot Conversations – 10 conversations between 2 experts on a climate change issue, all whilst an artist listens in the background and interprets the conversation into a beautiful piece of art in real time. Find out more at bristol.ac.uk/cabot/conversations.

Navigating divorce and environmental challenges: Implications in a changing world

Posted on October 30, 2023February 16, 2024 by amanda.woodman-hardy

Broken heart on wooden table. In an ever-evolving world, societal dynamics are continually shifting, reflecting the multifaceted nature of the human experience. One of the most profound changes we have witnessed in recent decades is the transformation of family structures, with divorce becoming a common facet of modern life across various societies. For instance, according to Office for National Statistics as of 2021, 42% of marriages in England and Wales end in divorce. Alongside this social evolution, we grapple with an equally pressing issue—the burgeoning environmental emergency. These two forces converge dramatically in more profound ways than we might realise. In this blog, I will explore the profound impact of dealing with divorce within the context of logistical and emotional anxiety brought about by the existential threat to our environment.

The complex landscape of divorce

Divorce, a life-altering event, affects not just the couple but an entire ecosystem—that is to say, the nuclear family. My PhD research findings illuminated the diverse experiences of young people whose parents divorced in different cultural contexts. After interviewing forty-four young people aged between 11 and 16 in Türkiye and England, what emerged strongly was a nuanced understanding of the variegated effects – both uplifting and otherwise, of divorce particularly for children.

For instance, more than half of the Turkish young people reported changing schools due to their parents’ divorce. While many didn’t directly attribute their school performance to the divorce, several children noted that changing schools positively impacted their performance. This aligns with global trends. A changing world demands adaptability, and some young people see education as their anchor, providing hope and a chance to take control of their lives, as reported by older participants in my study.

Emotional turmoil is a common aspect of divorce, with sadness and confusion being initial reactions. However, as my research indicates, many young people learn to adapt and grow from their experiences over time. Young people also emphasised the pivotal role that the home environment plays in shaping children’s experiences during and after divorce. Exposure to violence or maltreatment within the family environment can have a lasting negative impact.

Environmental challenges as an added layer

While navigating the intricate terrain of divorce, families now face an additional layer of complexity—the environmental challenges we face as a society. The world around us is changing rapidly due to issues such as climate change, pollution, and resource depletion. These challenges bring new dynamics to the fore within family life. A changing world presents economic challenges for families. Natural disasters, resource scarcity, or environmental policies have disrupted livelihoods and strained family finances, each feeding into existing marital tensions and ultimately increasing the likelihood of divorce. According to the World Economic Forum, climate change and related disasters could cost the global economy $360 billion annually by 2030.

Environmental crises force families to relocate or to become displaced persons, creating stress and uncertainty. The number of internally displaced people around the world reached 71.1 million as of the end of 2022, an increase of 20% from the previous year, according to the Internal Displacement Monitoring Centre’s flagship annual report. Today’s displacement crises are growing in scale, complexity and scope, and factors like food insecurity, climate change, and escalating and protracted conflicts are adding new layers to this phenomenon.

The emotional toll of witnessing environmental devastation can affect family members’ mental health. Anxiety, depression, and a sense of helplessness may surface, adding to the existing emotional challenges of divorce. The Mental Health Foundation in the UK has highlighted the impact of environmental issues and climate change on mental health, that stress and anxiety are rising.

A call for resilience and adaptation

As we stand at the crossroads of these two significant societal shifts—divorce and environmental challenges—it becomes clear that resilience and adaptation are paramount. Families must not only weather the storms of marital dissolution but must also equip themselves to confront the environmental storms of a changing world.

Empowering young people with education and awareness about both divorce and environmental issues is crucial. They need the tools to understand, adapt, and make positive contributions to their lives and the world around them. Families need robust support systems. This includes access to mental health services for emotional well-being and community networks that can assist during economic hardship or environmental crises.

Having to separate houses also means having to double the expenses for two different households. While divorce can bring about significant changes and challenges, it is important to recognise that it can also have positive aspects, such as the potential for personal growth and the opportunity to create healthier family dynamics. In my research, 95% of the young people said they feel happier after their parents’ divorce than before and during. Therefore, sustainable living practices can help mitigate the impact of both divorce and environmental challenges. This not only contributes to the preservation of the planet but also instils values of responsibility and resilience in younger generations. Divorce cannot solely be seen as a breakdown of a family unit. On the contrary, families can advocate for action on environmental issues, fostering a sense of purpose and unity. Addressing these challenges collectively can lead to positive changes that benefit the family unit and the world.

In our rapidly changing world, families often find themselves at the intersection of two transformative forces—personal and environmental upheaval. At first glance, divorce and environmental challenges may seem unrelated. However, the two have a profound connection. Studies have shown that the environment plays a significant role in shaping our mental health and well-being. The increasing prevalence of climate change-related stress and anxiety, as documented by the American Psychological Association, highlights this link.

When we realise that environmental changes impact our mental health, we can begin to see the intricate relations between these forces. By acknowledging the complexity of divorce within the context of a changing world, understanding the implications of environmental challenges on our emotional well-being, and fostering resilience and adaptation, we can empower families to not only survive but thrive in this shifting landscape. Ultimately, through these challenges, we can shape a more compassionate, resilient, and sustainable world for generations to come.

This blog is written by Dr Gozde Burger, whose PhD is on young people’s experiences of parental divorce in Türkiye and England. She is currently working as part of the GW4 Alliance as a Senior Research Coordinator. Contact: Gozde.burger@bristol.ac.uk.

Britain’s next election could be a climate change culture war

Posted on August 1, 2023August 1, 2023 by amanda.woodman-hardy

Signs indicating Ultra Low Emission Zone (ULEZ) on a street in London, UK.

A byelection in a London suburb has placed environmental policy at the centre of political debate in the UK, and could make it a key battleground in the next general election.

The Conservative party narrowly held former prime minister Boris Johnson’s seat in Uxbridge and South Ruislip, vacated after his resignation from parliament. The win has been cast as a victory driven by popular anger against climate policy, particularly London’s ultra-low emissions zone (Ulez) – an area where drivers of the highest-polluting vehicles must pay a fee.

The winning candidate positioned himself as the anti-Ulez choice, tapping into local anger at the policy. But as comments from media and politicians show, the Uxbridge story signals a new stage of national politics that demonises environmental policies. And my research suggests this could develop into an important new front in the culture war, with the power to help determine the next election.

The Ulez, created by Boris Johnson as mayor of London in 2015, is a restricted area covering central London, where vehicles must meet emissions standards or pay £12.50 to enter. Most petrol cars registered after 2005 and diesel cars registered after 2015 meet the standards. It’s primarily a public health policy, with the goal to reduce air pollution and encourage the use of low-emission vehicles.

It is due to expand into London’s outer boroughs in August 2023 – an area 18 times larger than the original zone. Legal battles and public protests have blamed London’s Labour mayor, Sadiq Khan, for the expansion of the policy.

The opposition to Ulez is highly partisan. Nationally, 59% of Conservatives oppose Ulez schemes compared to 23% of Labour voters. In London, 72% of those who voted Leave in the 2016 Brexit referendum opposed the Ulez expansion. Former Remain voters are evenly split, with 44% in support and 44% against the policy.

The Conservative prime minister, Rishi Sunak, has now distanced the government from green policies that could contribute to household expenses. Labour leader Keir Starmer acknowledged the role that Ulez played in the loss, saying that “policy matters” in elections. He also called on Khan to “reflect” on the Ulez expansion.

Climate change culture wars

My research shows net-zero policies are the next target of right-wing populism and culture wars in the UK. Narratives are emerging that tie complaints about climate policies being undemocratic or expensive to issues of Brexit, energy security and a “green elite”.

Last year, Nigel Farage called for a referendum on net-zero, policies that, in his words, had “been imposed upon people without any public discussion.”

This narrative is evident in the opposition to Ulez, despite evidence for the scheme. Air pollution has dropped dramatically one year into the Ulez expansion across inner London, and most cars in London’s outer boroughs fulfil the Ulez standards and would be unaffected by the expansion.

Yet videos of anti-Ulez protests show placards reading “Stop the toxic air lie”, a cardboard coffin with “democracy” written across it and protesters complaining about a lack of fairness and transparency in the policy.

Climate and public health measures are now linked in broader ideological battles about political and economic priorities. These policies have become fertile ground for anybody seeking to rally new supporters. Those supporters will come from groups whose day-to-day lives are impacted by these policies.

Green policies

The Ulez is not the first environmental policy to face public opposition. In 2009, the UK saw a popular campaign against the replacement of incandescent lightbulbs with LEDs.

More recently, bollards that designate low-traffic neighbourhoods have been set on fire. Opposition to these schemes has also been co-opted by conspiracy theorists arguing that climate policies are an attempt to take away personal freedoms.

We have seen the consequences of such debates before. A decade before Sunak, Conservative prime minister David Cameron stepped back from environmental policies, calling for ministers to “ditch the green crap”. This arguably led to a “lost decade” in climate policy, as well as the slowing of policies that would have reduced vulnerability in the recent energy crisis.

There is reason to hope that the coming election will be different. Public concern about the climate remains high: 67% of British people surveyed worried about climate breakdown.

And people are more likely to think that the government should do more, not less, in climate policy. New polling shows that climate concern is likely to pay off for Labour.

As I’ve argued, green policies can transform neighbourhoods. But governments must also recognise how such policies affect people’s everyday struggles, like cost of living, which are likely to dominate the next electoral cycle.

Policies must minimise impacts that disproportionately impact some groups over others. People living in London’s outer suburbs, without wide access to public transport, are more likely to own a car – driving local opposition to the Ulez in places like Uxbridge.

Ways to address this include paying people to scrap older vehicles. This is something Khan has put in place for Londoners, but has not had the government support to expand it to people living around London who would be affected when they drive into the capital.

Khan has spoken about opposition to the Ulez expansion as an “orchestrated campaign” that has moved beyond many Londoners’ “genuine concerns”. But concerns about Ulez aren’t limited to those engaging in conspiracy theories. They include residents worried about the getting to work, the school run, or caring for elderly relatives. These are problems that should be ironed out by comprehensive and sensitive policies that maximise the benefits of any change.

The coming election

The fact that a candidate can win on an anti-Ulez platform shows the effectiveness of simplifying climate action and its outcomes into what people can lose, and failing to emphasise the benefits.

The current debates miss a key point of climate action: it is never just about emissions. Opposition to the Ulez is not exclusively resistance to climate policy. It is dissent over who it impacts, and how.

The Labour party must decide whether to retreat from or double down on climate action. If the latter, the next general election will be fought as a climate change culture war.

On one side will be a group seeking to portray climate action as a costly, undemocratic and unfair exercise. On the other must be a call for climate policy that is about cleaner air, warmer homes and healthier neighbourhoods, without disproportionately impacting certain groups of people.

This blog is written by Dr Ed Atkins, Senior Lecturer, School of Geographical Sciences, University of Bristol. This article is republished from The Conversation under a Creative Commons license. Read the original article.

Limiting global warming to 2℃ is not enough – why the world must keep temperature rise below 1℃

Posted on June 29, 2023 by amanda.woodman-hardy

Warming of more than 1℃ risks unsafe and harmful outcomes for humanity.
Ink Drop/Shutterstock

The Paris Climate agreement represented a historic step towards a safer future for humanity on Earth when it was adopted in 2015. The agreement strove to keep global heating below 2℃ above pre-industrial levels with the aim of limiting the increase to 1.5℃ if possible. It was signed by 196 parties around the world, representing the overwhelming majority of humanity.

But in the intervening eight years, the Arctic region has experienced record-breaking temperatures, heatwaves have gripped many parts of Asia and Australia has faced unprecedented floods and wildfires. These events remind us of the dangers associated with climate breakdown. Our newly published research argues instead that humanity is only safe at 1℃ of global warming or below.

While one extreme event cannot be solely attributed to global heating, scientific studies have shown that such events are much more likely in a warmer world. Since the Paris agreement, our understanding of the impacts of global heating have also improved.

A fishing boat surrounded by icebergs that have come off a glacier. — Fishing boat dwarfed by icebergs that came off Greenland’s largest glacier, Jakobshavn Isbrae.
Jonathan Bamber, Author provided

Rising sea levels are an inevitable consequence of global warming. This is due to the combination of increased land ice melting and warmer oceans, which cause the volume of ocean water to increase. Recent research shows that in order to eliminate the human-induced component of sea-level rise, we need to return to temperatures last seen in the pre-industrial era (usually taken to be around 1850).

Perhaps more worrying are tipping points in the climate system that are effectively irreversible on human timescales if passed. Two of these tipping points relate to the melting of the Greenland and West Antarctic ice sheets. Together, these sheets contain enough ice to raise the global sea level by more than ten metres.

The temperature threshold for these ice sheets is uncertain, but we know that it lies close to 1.5℃ of global heating above pre-industrial era levels. There’s even evidence that suggests the threshold may already have been passed in one part of west Antarctica.

Critical boundaries

A temperature change of 1.5℃ might sound quite small. But it’s worth noting that the rise of modern civilisation and the agricultural revolution some 12,000 years ago took place during a period of exceptionally stable temperatures.

Our food production, global infrastructure and ecosystem services (the goods and services provided by ecosystems to humans) are all intimately tied to that stable climate. For example, historical evidence shows that a period called the little ice age (1400-1850), when glaciers grew extensively in the northern hemisphere and frost fairs were held annually on the River Thames, was caused by a much smaller temperature change of only about 0.3℃.

A sign marking the retreat of a glacier since 1908. — Jasper National Park, Canada. Glaciers used to grow extensively in the Northern Hemisphere.
Matty Symons/Shutterstock

A recent review of the current research in this area introduces a concept called “Earth system boundaries”, which defines various thresholds beyond which life on our planet would suffer substantial harm. To avoid passing multiple critical boundaries, the authors stress the need to limit temperature rise to 1℃ or less.

In our new research, we also argue that warming of more than 1℃ risks unsafe and harmful outcomes. This potentially includes sea level rise of multiple metres, more intense hurricanes and more frequent weather extremes.

More affordable renewable energy

Although we are already at 1.2℃ above pre-industrial temperatures, reducing global temperatures is not an impossible task. Our research presents a roadmap based on current technologies that can help us work towards achieving the 1℃ warming goal. We do not need to pull a technological “rabbit out of the hat”, but instead we need to invest and implement existing approaches, such as renewable energy, at scale.

Renewable energy sources have become increasingly affordable over time. Between 2010 and 2021, the cost of producing electricity from solar energy reduced by 88%, while wind power saw a reduction of 67% over the same period. The cost of power storage in batteries (for when the availability of wind and sunlight is low) has also decreased, by 70% between 2014 and 2020.

An aerial photograph of a photovoltaic power plant on a lush hillside. — A photovoltaic power plant in Yunnan, China.
Captain Wang/Shutterstock

The cost disparity between renewable energy and alternative sources like nuclear and fossil fuels is now huge – there is a three to four-fold difference.

In addition to being affordable, renewable energy sources are abundantly available and could swiftly meet society’s energy demands. Massive capacity expansions are also currently underway across the globe, which will only further bolster the renewable energy sector. Global solar energy manufacturing capacity, for example, is expected to double in 2023 and 2024.

Removing carbon dioxide from the atmosphere

Low-cost renewable energy will enable our energy systems to transition away from fossil fuels. But it also provides the means of directly removing CO₂ from the atmosphere at a large scale.

CO₂ removal is crucial for keeping warming to 1℃ or less, even though it requires a significant amount of energy. According to research, achieving a safe climate would require dedicating between 5% and 10% of total power generation demand to effective CO₂ removal. This represents a realistic and attainable policy option.

Various measures are used to remove CO₂ from the atmosphere. These include nature-based solutions like reforestation, as well as direct air carbon capture and storage. Trees absorb CO₂ from the atmosphere through photosynthesis and then lock it up for centuries.

A group of people planting a mangrove forest next to the sea. — A mangrove forest being planted in Klong Khone Samut Songkhram Province, Thailand.
vinai chunkhajorn/Shutterstock

Direct air capture technology was originally developed in the 1960s for air purification on submarines and spacecrafts. But it has since been further adapted for use on land. When combined with underground storage methods, such as the process of converting CO₂ into stone, this technology provides a safe and permanent method of removing CO₂ from the atmosphere.

Our paper demonstrates that the tools and technology exist to achieve a safer, healthier and more prosperous future – and that it’s economically viable to do so. What appears to be lacking is the societal will and, as a consequence, the political conviction and commitment to achieve it.

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This blog is written Cabot Institute for the Environment member Jonathan Bamber, Professor of Glaciology and Earth Observation, University of Bristol and Christian Breyer, Professor of Solar Economy, Lappeenranta University of Technology. This article is republished from The Conversation under a Creative Commons license. Read the original article.

Arctic Ocean could be ice-free in summer by 2030s, say scientists – this would have global, damaging and dangerous consequences

Posted on June 8, 2023 by amanda.woodman-hardy

Ice in the Chukchi Sea, north of Alaska and Siberia.
NASA Goddard Space Flight Center

The Arctic Ocean could be ice-free in summer by the 2030s, even if we do a good job of reducing emissions between now and then. That’s the worrying conclusion of a new study in Nature Communications.

Predictions of an ice-free Arctic Ocean have a long and complicated history, and the 2030s is sooner than most scientists had thought possible (though it is later than some had wrongly forecast). What we know for sure is the disappearance of sea ice at the top of the world would not only be an emblematic sign of climate breakdown, but it would have global, damaging and dangerous consequences.

The Arctic has been experiencing climate heating faster than any other part of the planet. As it is at the frontline of climate change, the eyes of many scientists and local indigenous people have been on the sea ice that covers much of the Arctic Ocean in winter. This thin film of frozen seawater expands and contracts with the seasons, reaching a minimum area in September each year.

Animation of Arctic sea ice from space — Arctic sea ice grows until March and then shrinks until September.
NASA

The ice which remains at the end of summer is called multiyear sea ice and is considerably thicker than its seasonal counterpart. It acts as barrier to the transfer of both moisture and heat between the ocean and atmosphere. Over the past 40 years this multiyear sea ice has shrunk from around 7 million sq km to 4 million. That is a loss equivalent to roughly the size of India or 12 UKs. In other words, it’s a big signal, one of the most stark and dramatic signs of fundamental change to the climate system anywhere in the world.

As a consequence, there has been considerable effort invested in determining when the Arctic Ocean might first become ice-free in summer, sometimes called a “blue ocean event” and defined as when the sea ice area drops below 1 million sq kms. This threshold is used mainly because older, thicker ice along parts of Canada and northern Greenland is expected to remain long after the rest of the Arctic Ocean is ice-free. We can’t put an exact date on the last blue ocean event, but one in the near future would likely mean open water at the North Pole for the first time in thousands of years.

Annotated map of Arctic — The thickest ice (highlighted in pink) is likely to remain even if the North Pole is ice-free.
NERC Center for Polar Observation and Modelling, CC BY-SA

One problem with predicting when this might occur is that sea ice is notoriously difficult to model because it is influenced by both atmospheric and oceanic circulation as well as the flow of heat between these two parts of the climate system. That means that the climate models – powerful computer programs used to simulate the environment – need to get all of these components right to be able to accurately predict changes in sea ice extent.

Melting faster than models predicted

Back in the 2000s, an assessment of early generations of climate models found they generally underpredicted the loss of sea ice when compared to satellite data showing what actually happened. The models predicted a loss of about 2.5% per decade, while the observations were closer to 8%.

The next generation of models did better but were still not matching observations which, at that time were suggesting a blue ocean event would happen by mid-century. Indeed, the latest IPCC climate science report, published in 2021, reaches a similar conclusion about the timing of an ice-free Arctic Ocean.

As a consequence of the problems with the climate models, some scientists have attempted to extrapolate the observational record resulting in the controversial and, ultimately, incorrect assertion that this would happen during the mid 2010s. This did not help the credibility of the scientific community and its ability to make reliable projections.

Ice-free by 2030?

The scientists behind the latest study have taken a different approach by, in effect, calibrating the models with the observations and then using this calibrated solution to project sea ice decline. This makes a lot of sense, because it reduces the effect of small biases in the climate models that can in turn bias the sea ice projections. They call these “observationally constrained” projections and find that the Arctic could become ice-free in summer as early as 2030, even if we do a good job of reducing emissions between now and then.

Walruses on ice floe — Walruses depend on sea ice. As it melts, they’re being forced onto land.
outdoorsman / shutterstock

There is still plenty of uncertainty around the exact date – about 20 years or so – because of natural chaotic fluctuations in the climate system. But compared to previous research, the new study still brings forward the most likely timing of a blue ocean event by about a decade.

Why this matters

You might be asking the question: so what? Other than some polar bears not being able to hunt in the same way, why does it matter? Perhaps there are even benefits as the previous US secretary of state, Mike Pompeo, once declared – it means ships from Asia can potentially save around 3,000 miles of journey to European ports in summer at least.

But Arctic sea ice is an important component of the climate system. As it dramatically reduces the amount of sunlight absorbed by the ocean, removing this ice is predicted to further accelerate warming, through a process known as a positive feedback. This, in turn, will make the Greenland ice sheet melt faster, which is already a major contributor to sea level rise.

The loss of sea ice in summer would also mean changes in atmospheric circulation and storm tracks, and fundamental shifts in ocean biological activity. These are just some of the highly undesirable consequences and it is fair to say that the disadvantages will far outweigh the slender benefits.

This blog is written by Cabot Institute for the Environment member Jonathan Bamber, Professor of Physical Geography, University of Bristol. This article is republished from The Conversation under a Creative Commons license. Read the original article.