Tag: air

I won’t fly to your conference, but I hope you will still invite me to participate

Posted on by janet.crompton

I was really proud to see that the University of Bristol declared a climate emergency. It was one of those moments that makes you feel part of a worthwhile institution (despite its many other flaws, like all institutions). Inspired by the exploding #Fridaysforclimate movement and the speeches of brave activist @GretaThunberg, I had been thinking about what I could personally do to contribute to the needed paradigm change. It did not take much reflection to realise that the most effective change in my professional life would clearly be to cut down travel, specially by air. And so, the University’s announcement prompted me to ‘go public’ with it.

This tweet prompted a series of exchanges with colleagues from Bristol and elsewhere. The reaction was mainly in three directions. First, that such a personal ‘no travel policy’ may be impossible to adopt in the context of (UK) academia, where public and conference speaking is used as both a measure of ‘academic productivity’ and as a proxy for esteem/standing in the field for the purposes of eg promotion—so, either you travel, or you may be seen as not doing your job or/and not worthy of (further) promotion. Second, that this would reduce the likely impact of my research and cut me off from potentially relevant audiences. Third, that this would exclude some of the very enjoyable moments that come with academic conferences, where you end up socialising with likely-minded colleagues and developing networks of collaborators and, if lucky, friends.

All of these are important points, so I have given this a little bit more thought.

First, I have to concede that not traveling to conferences will be an issue in terms of justifying my engagement with the academic (and policy-making) communities unless I manage to find a way to still participate in conferences. But this should not be too difficult. Today, there is large number of options to organise webinars and to allow for remote participation in meetings, so there is really no excuse not to take advantage of them. The technology is there and most institutions offer the required equipment and software, so it is high time that academics (and policy-makers) start using it as the default way of organising our interactions. This can even have secondary positive effects, such as the possibility of recording and publishing all or part of the conferences/meetings, so that different people can engage with the discussion at different times.

I also concede that not traveling to conferences and workshops can have a negative impact on ‘CV-building’ and that this will reduce any academic’s prospect of promotion. But I can only say that, to my shame and regret, I have been burning too much CO2 to get to my current academic position. In current lingo, I have exhausted (or, more likely, exceeded) my CO2 budget for conferences, so I can no longer afford to do it. If this means that my employer may not consider me deserving of a higher academic position as they may otherwise have, then I will have to accept any delays that come from implementing a no travel policy. In the grand scheme of things, this is a tiny sacrifice.

I acknowledge that this is something I can do from the very privileged academic position I am lucky to have, so I have no intention of proselytising. However, I do plan to try to change the system. I will work with my local trade union branch to see if we can make specific proposals to reduce the CO2 footprint of the promotions procedure. I will also organise webinars and non-presential conferences and offer every opportunity I can, in particular to early career researchers, so that academics can carry on with ‘CV-building’ (and, more importantly, knowledge-exchange) despite not traveling. These are the remedial actions I can and will implement. If you can think of others, please let me know. I would be more than happy to chip in.

Second, I must say that I have generally reached the audience for my academic work online. Only very rarely have I spoken at a conference or workshop where participants did not know my work from my SSRN page and this blog. With the partial exception of Brussels-based policy-makers (when I have been member of expert groups), every other policy-making body and NGO that has engaged with my work has done so remotely and, oftentimes, without any sort of direct conversation or exchange. There are plenty opportunities for academics to share their work online on open access and this has made the need for last-century-type conferences and workshops largely redundant for the purposes of knowledge and research dissemination. We need to realise this and use it to the advantage of a lower CO2 footprint for knowledge exchange.

Third, the social component is more difficult to address. There is no question that socialising at conferences and workshops has value in and of itself. It is also clear that, once you establish a network, you do not need to meet regularly with your collaborators and friends (however nice it is) to keep it going. So this may be the only aspect of conference travel that could justify going to a very specific event eg to establish new connections or to rekindle/deepen existing ones. But maybe this can be done without flying—eg in the case of UK-based academics like me, to prioritise conferences in Europe and convincing our employers and ourselves to take the extra time to travel by train or bus (anecdotally, most academics I know love train trips).

So, all in all, I have reaffirmed myself in the commitment to minimise my conference travel and, from today, I plan to not accept invitations to speak at or attend any conferences that require me to fly (although I will still fulfill the few prior commitments that I have). I will always ask for a ‘virtual alternative’, though, and I am really hoping that this will be acceptable (or even welcome).

Thus, in case you organise a conference on a topic within my expertise, here is my message: I will not fly to your conference, but I hope you will still invite me to participate. I hope you will because we have the technology to do this and because I value of our exchanges.

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This blog is written by Dr Albert Sanchez Graells, Reader in Economic Law at the University of Bristol. This blog was reposted with kind permission from Albert. You can view his original blog post here.

Dr Albert Sanchez Graells

Local students + local communities = action on the local environment

Posted on by janet.crompton
As part of Green Great Britain Week, supported by BEIS, we are posting a series of blogs throughout the week highlighting what work is going on at the University of Bristol’s Cabot Institute for the Environment to help provide up to date climate science, technology and solutions for government and industry.  We will also be highlighting some of the big sustainability actions happening across the University and local community in order to do our part to mitigate the negative effects of global warming. Today our blog will look at ‘Climate action in communities.

Geography students from the University of Bristol spent February 2018 working on air, soil and water quality research projects for local organisations and community groups, including Bristol Green Capital Partnership members. Below is a summary of each project, the findings and next steps.

Bristol City Council – Bristol Urban Heat Island effect

Students investigated the effects of urban and suburban heat islands within Bristol compared to local rural areas. Urban Heat Island can impact human health, air and water quality and energy demand in the City with implications for future planning and city resilience. This project aimed to provide early groundwork for Bristol City Council in developing a better understanding of the Urban Heat Island in the city. The group used fifteen Tinytags across the city to collect temperature data and gained secondary data from local weather stations and building management systems. The group used a contour graph (see image below) to illustrate the UHIs they found, there was significant differences (c.1.3C) between rural sites, such as Fenswood Farm, Long Ashton compared to urban sites in close proximity, such as Hotwells Road. Bristol City Council will be using this data and other insights generated through participation in the project to inform i) the co-development of an urban temperature monitoring network and ii) further research into the Urban Heat Island effect.

Malago Valley Conservation Group – water pollution in the River Malago

Students investigated how water quality varied along the River Malago in Bishopsworth and what biological impact the dam has on microplastics and pollution in the river. Initially the group collected GPS data to map the river course and used water quality samples from 40 sites along the river to record nutrient, chlorophyll and microplastic data. The team found that some microplastic build up was evident before dams and weirs along the river and nitrate concentrations increased downstream through nitrification which suggests there may be impacts on the ecology of the river. Overall the river was found to be relatively healthy according to DEFRA and Environment Agency data, but there were recommended actions to protect its health in the future. The Malago Valley Conservation Group will be using the findings to plan conversation work programmes with their volunteers.

Bristol Avon Rivers Trust – water pollution in Three Brooks Lake

Students investigated the Three Brooks Lake and accompanying urban brooks in North Bristol to see if there was a difference in pollution levels entering the lake from two brooks from separate local residential areas. The group collected twenty water samples from the site and secondary data from the Environment Agency to examine variations in the pH, nutrient concentrations, turbidity (cloudiness of the water) and microplastics levels at the site. The findings suggested that there is likely to be a difference in the water quality of the two brooks and that the lake may be a sink for water pollution in the area. The Three Brooks Nature Reserve group will use the findings to support the development of a local management plan and the Bristol Avon Rivers Trust will be using the findings to contribute to their existing knowledge base for the catchment and to search for funding to develop the research further and to undertake any necessary improvements.

Friends of Badock’s Wood – wildflower cultivation in Badock’s Wood

Students investigated the soil conditions in Badock’s Wood to support the cultivation of wildflower meadows. The group collected soil cores from three meadows and a control meadow to analyse the soil moisture and organic matter content in the lab. Most wildflower species prefer calcareous soils (>15% calcium) with low phosphorous and high nitrogen content to grow optimally. Findings showed that two meadows have calcareous soils and two were on the borderline, all meadows had low phosphorus and low nitrogen content. In the present conditions, although some wildflowers do grow, the soil isn’t optimal to sustain the growth of many species but measures could be taken to improve the soil and more robust wildflowers could be selected to cope with soil conditions. The Friends of Badock’s Wood will be using the findings to revise their management plan for the site.

Dundry and Hartcliffe Wildlife Conservation Group – water pollution in Pigeonhouse stream tributaries

Students investigated water quality variances in five tributaries of the Pigeonhouse stream in Hartcliffe and whether this is influenced by land use in the area. The group collected samples to analyse the pH, nutrient content and temperature of the streams. The findings showed that the tributaries were healthy and unlikely to be contributing to water pollution levels in the Pigeonhouse stream and further downstream in the River Malago. The group suggested that high levels of nitrate in one tributary and Pigeonhouse stream were likely to be a result of run-off from neighbouring fertilised agricultural fields. E. Coli was prolific in all areas, the source of this will be a subject for future students to investigate. Dundry and Hartcliffe Wildlife Conservation Group will present the findings to the local neighbourhood partnership group.

Dundry and Hartcliffe Wildlife Conservation Group – effects of urban development and refuse on the Pigeonhouse Stream

Students investigated water quality along the Pigeonhouse stream in Hartcliffe. The group collected water samples to analyse for pH, nutrient content, turbidity and microplastic levels in the stream. Findings showed that microplastic pollution increased and turbidity (water cloudiness) decreased downstream as urbanisation increased. Ammonia and nitrogen concentrations were found to be high in the stream, but average compared to other streams in the region and within DEFRA safety standards. In-flow pipes from the surrounding urban areas are likely to be influencing the water quality in the stream. Dundry and Hartcliffe Wildlife Conservation Group will use the report to work with Bristol Waste to reduce fly-tipping in the area and with the local neighbourhood partnership to develop strategies to reduce pollution from the in-flow pipes.

Friends of Bristol Harbourside Reed Bed – impacts of reed beds on water quality in Bristol Floating Harbour

Students investigated spatial variation in water quality across the reed bed. The group collected twenty-one water samples and analysed for E.Coli, heavy metals, pH and nutrient content. Findings showed usual levels of heavy metals, except for zinc which was ten times higher than expected. There was no evidence that the reed bed influenced nutrient concentrations or pH levels, but this may be different if the research was conducted in summer during peak growing season. High levels of chlorophyll were found over the reed bed which can result in algae blooms. The group recommended that the reed beds should be cut back annually in autumn, this will reduce the amount of dead plant matter in the water to maintain healthy levels of zinc and chlorophyll in the reed bed. Friends of Bristol Harbourside Reed Bed will be using the findings to inform their management plan of the reed bed.

Friends of Bristol Harbourside Reed Bed – the health of the Bristol Floating Harbour reed bed

Students investigated concentrations of heavy metals and microplastics in the reed bed which would impact the reed bed ecology. The group collected ten sediment samples and five reed samples to test in the lab. Findings showed usual nitrate and phosphate levels, but zinc and potassium levels were higher than in comparable rivers which may be due to houseboats dumping excrement in the water. Microplastics were prolific in the sediment samples and identified as a major pollutant in the reed bed. The reed beds were filtering some pollutants in the water, particularly potassium, but these will re-enter the ecological system if the reeds are left to die back. The group recommended that reeds were cut back annually to reduce pollutants in the water. Friends of Bristol Harbourside Reed Bed will be using the findings to inform their management plan of the reed bed.

Bristol Zoo – air pollution at Bristol Zoo

Students investigated CO2 levels as an indicator of air pollution levels at Bristol Zoo. The group collected data using CO2 probes and gas samples at five sites at Bristol Zoo and two control sites at Fenswood Farm, Long Ashton and Bear Pit Roundabout, City Centre. The analysis accounted for environmental factors such as temperature and windspeed. Findings showed that air pollution was higher at the boundaries of Bristol Zoo than in the centre, but not as high as in the city centre. The group suggested further investigations into the impact of the high boundary wall and roadside vegetation on air pollution at Bristol Zoo would be useful. Bristol Zoo will be using the findings to as a baseline for more research into air pollution at the site.

Narroways Millennium Green Trust

Students investigated the impacts of firepits on soil pollution and compaction at the Narroways Hill conservation site in St Werburghs. The group collected twenty soil samples to test in the lab. Findings showed that soil compaction was high in some areas of the site, but no evidence linked this to firepits at the site. Soil moisture was found to increase further from the firepits. There was not significant evidence to show heavy metal pollutants at the sites, except for arsenic which the group are investigating further. Narroways Millennium Green Trust will be using the findings to inform public communications around fires at the site.

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This blog is written by Amy Walsh from Skills Bridge. If your organisation would benefit from similar research, please email amy@bristolgreencapital.org.



Read other blogs in this Green Great Britain Week series:
1. Just the tip of the iceberg: Climate research at the Bristol Glaciology Centre
2. Monitoring greenhouse gas emissions: Now more important than ever?
3. Digital future of renewable energy
4. The new carbon economy – transforming waste into a resource
5. Systems thinking: 5 ways to be a more sustainable university
6. Local students + local communities = action on the local environment

Brexit, trust and the future of global environmental governance

Posted on by janet.crompton

Post-Brexit vote, we are posting some blogs from our Cabot Institute members outlining their thoughts on Brexit and potential implications for environmental research, environmental law and the environment.  
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Is Brexit the canary in the mine for global environmental governance? 

Britain’s vote to leave the European Union has troubling implications for global environmental governance. Water pollution, air pollution, and climate change have no regard for political borders. The world needs supranational political institutions to facilitate a coordinated response to these challenges. The EU is a relatively effective supranational institution for progressive environmental governance. EU nations have enjoyed major improvements in recent decades in areas like air quality, bathing water quality, nature preservation, and acid rain. The EU is one of the most constructive voices in global climate governance.

The decision to leave is therefore likely to present some setbacks with regard to regional environmental governance. But more importantly it signals broad disenchantment with supranational political institutions more generally. People resent and distrust them as distant and undemocratic. And it’s not just the British public that feels this way. The impulse to withdraw and disengage is increasingly evident across Europe and the USA.

This trend is all the more worrying when we look at the profile of the average Leave voter. A recent YouGov survey of British voters found that Leave supporters are deeply distrustful of just about everyone. They don’t much trust academics—as Vote Leave’s Michael Gove put it, “people in this country have had enough of experts.” Nor do they trust the opinions of think tanks, economists, or international organisations like the UN. Just 8 percent trust British politicians. By contrast, a majority of Remain voters generally trust academics, economists, business leaders, and international organisations. (Neither group trusts journalists or, perhaps more positively, celebrities.) But, as we now know, voters for Remain are in the minority.

This ‘trust deficit’ is at the root of the post-factual politics that seems to have taken hold across much of the Western world.

Without trust in ‘experts’ such as environmental scientists we will not be able to build an informed consensus about the nature of the problems we face, let alone go about solving them. Without trust in politicians we will not be willing to accept difficult decisions with short-term costs but long-term benefits, including for younger and future generations. Without trust in supranational institutions, such as the EU and UN, we will not be able to coordinate our efforts in addressing many of the greatest threats to human welfare, all of which are supranational in nature. 

There has been much commentary about the generational divide in the Brexit vote, perhaps offering some hope for the future. Younger people supported Remain by a wide margin indicating a willingness to remain engaged with Europe. But younger generations turned out in much smaller numbers and low youth turnout is consistent with the evidence that millennials are less politically engaged than previous generations. They are also less trusting. (See evidence of mistrustful millennials here and here).

In short, young people appear to be more open to international cooperation, but disinclined to engage with domestic politics. In the worst case scenario, this could be a recipe for divisive politics in which motivated minorities on both sides of the political spectrum seize the centrist vacuum to promote their worldviews through formal political institutions.

What then does the future hold? The cacophony of narratives of next-steps is almost unprecedented in British history. No one appears to have a clear plan with an emergent consensus. But there is one potential ray of hope in this political drama. If young people—and millennials in particular—are shocked into engaging more actively and passionately with formal political institutions, the Brexit vote might well turnout not to be the canary in the mine so much as an important moment of political awakening.

Let us hope this is the case. For the future of environmental governance is ultimately in the hands of our worldly but politically disengaged youth.

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This blog is written by University of Bristol Cabot Institute members Dr Sean Fox (Political Economy of Development & Urban Geography) and Dr Malcolm Fairbrother (Global Policy and Politics), both from the School of Geographical Sciences.

Sean Fox

Read other blogs in the Brexit series:

Do people respond to air pollution forecasts?

Posted on by janet.crompton

In 2010, the House of Commons Environmental Audit Committee published a report on air quality in which they concluded that “poor air quality probably causes more mortality and morbidity than passive smoking, road traffic accidents or obesity”. Concerned that the Government was still not giving air quality a high enough priority, the Committee published another report in 2011. To date, the Committee’s main recommendations have not been implemented. Amidst new evidence on the negative effects of air pollution on health and a court case that found the UK Government guilty of failing to meet EU air quality targets, the Committee published a third report on air quality last week.

One of the Committee’s recommendations is that the Government works more closely with the Met Office, the BBC and other broadcasters to ensure that forecasts of high air pollution episodes are disseminated widely together with advice on what action should be taken. The Committee’s rationale is that information about air pollution allows individuals to take action that reduces exposure. However, avoidance behaviour, such as staying indoors, imposes a cost on individuals that might exceed the perceived gains.

A BBC weather forecast for Bristol showing the commonly
encountered “green” air pollution forecast.

In a paper published this month in the Journal of Health Economics (Link with free access until 22 January 2015) I investigate responses to air pollution warnings in England. I obtained data on the air pollution forecasts issued by Defra from 2002 to 2008. During this period the daily air pollution forecast was freely available via the internet, a Freephone telephone service, Teletext and with the weather forecast on the BBC website. The forecast was disseminated using traffic light colour-coding, with green indicating low levels of air pollution, amber moderate and red high levels. “Red” forecasts were extremely rare (3% of forecasts) and “green” forecasts very common (70% of forecasts), so a change from “green” to “amber” (27% of forecasts) was akin to an air pollution warning. Hence, I define an “amber” or “red” forecast as an air pollution warning.

Air pollution warnings and hospital emergency admissions

First, I looked at indirect evidence of avoidance behaviour by estimating the relationship between air pollution warnings and hospital emergency admissions for respiratory diseases in children aged 5 to 19 years. I controlled for actual air pollution levels and therefore essentially compared days with a certain level of air pollution for which an air pollution warning was issued with days with the same level of air pollution for which no air pollution warning was issued. If parents and children do respond to air pollution warnings by reducing their exposure or taking other preventive measures, we expect fewer emergency hospital admissions on days for which an air pollution warning was issued compared to days with the same level of air pollution but no warning.

Looking at all respiratory admissions I found no effect. Looking at a subset of respiratory admissions – admissions for acute respiratory infections such as pneumonia and bronchitis – I also found no effect. Only when I examined another subset of respiratory admissions, namely admissions for asthma, did I find that air pollution warnings reduce hospital emergency admissions, by about 8%.

Presumably, it is less costly for asthmatics to respond to an air pollution warning. Standard advice for asthmatics is to adjust the dose of their reliever medicine and to make sure they carry their inhaler with them. Other types of respiratory disease require far more disruptive preventive measures such as staying indoors, making the cost of responding to air pollution warnings larger than the perceived gains.

Direct evidence of avoidance behaviour: visitors to Bristol Zoo

To find direct evidence of avoidance behaviour, I examined daily visitor counts to Bristol Zoo Gardens. Zoos are attractive destinations for families with children. Even with some animal houses under cover, most people will consider a zoo visit to be an outdoor activity and therefore susceptible individuals might adjust their plans to the air pollution forecast.  I found that lower temperature, more rain and higher wind speed reduced visitor numbers but found no effect of air pollution warnings on visitor numbers. Only when I looked at members – visitors who have an annual membership that entitles them to unlimited visits for a year – did I find that air pollution warnings reduce visits by about 6%. For members it is less costly to respond to air pollution warnings as they tend to be local residents who can just drop in for a quick visit. Thus, the perceived gains from postponing a visit are more likely to exceed the cost of postponing than for day visitors.

This graph shows monthly means of visitors to Bristol Zoo Gardens, daily maximum temperature and monthly total of air pollution warnings. Day visitors (grey bars) are far more responsive to temperature (yellow line) than to air pollution warnings (purple bars). Members’ visits (green bars) seem to be fewer in months with more air pollution warnings (purple bars).

Overall, my results show that whether individuals respond to air quality information depends on the costs and benefits of doing so: where costs are low and the benefits clear, responses are higher. This finding suggests, that wider dissemination of high air pollution forecasts as recommended by the Commons Environmental Audit Committee may not bring about the desired prevention of adverse health effects from air pollution. The Committee’s other recommendations aimed at lowering air pollution levels are more likely to succeed in preventing ill health.

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This blog is written by Cabot Institute member Katharina Janke, Research Associate in Applied Microeconomics and Health Economics at the Centre for Market and Public Organisation at the University of Bristol.
Katharina Janke

Uncertainties about the effects of fracking in the UK

Posted on by janet.crompton

I’m a bit of an energy agnostic. This week I attended a talk at UWE about fracking and its impact on the environment in the hope of making a better informed decision on the controversial topic.

What is fracking?

Jenna Brown, a first year PhD student, started off with an introduction to fracking, or hydraulic fracturing.

Gas molecules trapped in dense shale rocks are almost impossible to obtain by normal drilling. Fracking involves drilling vertically down and then horizontally into the rock. Fracking fluid, a mixture of water, sand and other chemicals, is injected into the rock at high pressure, expanding the tiny cracks and allowing the gas trapped within to escape and travel back up the pipe for collection.

Taken from BBC News

 

Natural gas is viewed as a transition energy source from dirty fossil fuels to greener renewable energies in the future. It produces almost half the amount of carbon dioxide per unit of energy than coal, which could help us meet the national target of reducing CO2 emissions by 80% by 2050.

 

Image by Varodrig
Jenna explained that the government see shale gas as a way to improve our national energy security. The British Geological Survey estimates that the Bowland Shale reserve in central England holds 1329 trillion cubic feet of shale gas, although across the entire UK estimates vary wildly because they are mainly based on data from other countries. Jenna highlighted the fact that whilst this is a huge amount of fuel, much if not most of it will not be technically recoverable. Still, it could provide greater energy security in the UK, which imported one trillion cubic feet of natural gas in the first six months of this year.

Water use
Dr. Chad Staddon, associate professor of resource geographies at UWE, spoke about the possible problems that UK water security faces with fracking. As well as the potential to pollute ground water (explained here), Chad was concerned that fracking could pose a problem to UK water security but even more worried that this had not yet been assessed in detail.
Fracking requires a huge volume of water; around 4 – 20 million litres per well in the USA according to the International Energy Agency. This amounts to just 0.3% of US national water usage, however Chad highlighted two important problems with this figure. First, US shale reserves are only around 750m deep. In the UK, our reserves may reach down as far as 3km, meaning we could layer six or more horizontal fracking pipes in a single well. The increased depth and number of fracking pipes means that significantly more water may be required in UK sites.
The second issue is one of local resources. Even in relatively rainy countries there can be pockets of water scarcity, which can be intensified by local demand. Unfortunately, there is little guidance in the published scientific literature to aid the UK in avoiding over-committing our water to fracking at the cost of food production and water security. Parts of the UK, such as the south east, are already at water capacity. Adding the water demands of fracking may lead to local droughts or the costly transport of water from other parts of the country. A 2013 report for the Department of Energy and Climate Change stated that if waste water is recycled where possible, water requirements for fracking could be managed sustainably.

Air quality
Dr. Enda Hayes, a UWE research fellow, spoke about the effect fracking could have on air quality management. He was trying to learn more about the emissions from a shale gas well, however the findings in scientific reports varied enormously because no two wells are the same. Different geographies, demands and outputs greatly affect the results, which means that it is very difficult to use US data to try and predict the effect of fracking on UK air quality. Fracking could contribute to particulates and toxic compounds in the air, as well as increased CO2 emissions and methane leaks.  
Less CO2 is produced per unit of energy when burning shale gas compared to coal and oil. However Enda spoke about recent reports stating that the net effect of shale gas on greenhouse gases is likely to be small, and could actually increase emissions if the displaced coal and other fossil fuels are used elsewhere. Another major player in climate change is methane. In the USA, 11% of methanee missions are produced from coal mining, mainly by methane leaking from the mines. Shale gas is mostly comprised of methane, which must be properly contained to prevent even greater emissions from leaks.

 

Big questions
The panelists agreed that there is simply not enough relevant information to decide whether the benefits outweigh the negatives of fracking in the UK. There are several big questions that I think need to be answered. Just how much water would a UK shale gas well need? Do we have the technology to prevent water and air pollution? Do viable alternatives to fracking exist, and can we afford them?
Is there a perfect energy source? Should we stick to cheap-but-dirty coal or switch to inefficient bird-killing windmills? Are you more scared of nuclear meltdowns or global warming? As David Shukman concluded in his excellent BBC article, “whichever type of power you choose, it is going to make someone angry“.
This blog is written by Sarah Jose, Biological Sciences, University of Bristol
You can follow Sarah on Twitter @JoseSci
Sarah Jose

 

 

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