Food Security – Page 4 – Cabot Institute for the Environment blog

World Water Day: Water scarcity challenges under climate change in East African drylands

Posted on March 20, 2020April 4, 2023 by janet.crompton

Climate change presents great challenges for dryland regions, especially in communities where socioeconomic livelihoods are tied to the consistency of seasonal rainfall. In the dryland regions of East Africa, drought is a major threat to rainfed agriculture and to drinking water supplies, and regional climate is projected to increase drought frequency and severity.

Since 2000 alone East Africa has been struck by 10 droughts, which generated three severe famines affecting millions of people in the region. Although there is often consensus about the growing regional threat posed by drought, there is a major disconnect between the climate science (meteorological drought) and assessments of usable water resources (hydrological drought) that support livelihoods.

Affected communities need straightforward answers to a practical set of questions: How will regional climate change affect soil moisture required to grow crops or the water table in wells that provide precious drinking water in a parched landscape? How will the water stores change season by season and over coming decades? Furthermore, what adaptation strategies are available to address this challenge?

Through a series of funded projects, we have been working at better understanding how climate and climate change translates into useable water in the ground in East African dryland regions, and how people use and access relevant information to make livelihood decisions towards adaptation. We have developed an interdisciplinary team comprised of dryland hydrologists, climatologists, hydrometeorologists, computer scientists, pastoralist experts, and social scientists (both in the UK and Kenya, Somalia and Ethiopia) to develop a holistic perspective on both the physical and social aspects of drought. We are developing new regional modelling tools that convert past and future rainfall trends into soil moisture and groundwater. These models will underpin a new mobile phone app that aims to deliver forecasts of crop yields and soil moisture to remote agro-pastoralists. Simultaneously we are working with drought-affected communities in Kenya and Ethiopia to better understand barriers and opportunities for improving resilience to climate change, information use, and feasible adaptation strategies.

We hope that through these research endeavours we can contribute to improved climate adaptation efforts in these dryland regions and to long-term societal resilience to climate change.

Read more about Katerina’s work.

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This blog is written by Dr Katerina Michaelides, Head of Dryland Research Group at the School of Geographical Sciences and Cabot Institute for the Environment, University of Bristol.

Katerina Michaelides

Sowing the seeds of collaborations to tackle African food insecurity

Posted on June 28, 2019April 3, 2023 by janet.crompton

A group of early career researchers from 11 African countries got together in Bristol, UK, this month for a two-week training event. Nothing so unusual about that, you may think.

Yet this course, run by the Community Network for African Vector-Borne Plant Viruses (CONNECTED), broke important new ground.

The training brought together an unusual blend of researchers: plant virologists and entomologists studying insects which transmit plant diseases, as an important part of the CONNECTED project’s work to find new solutions to the devastation of many food crops in Sub-Saharan African countries.

The CONNECTED niche focus on vector-borne plant disease is the reason for bringing together insect and plant pathology experts, and plant breeders too. The event helped forge exciting new collaborations in the fight against African poverty, malnutrition and food insecurity.

‘V4’ – Virus Vector Vice Versa – was a fully-funded residential course which attracted great demand when it was advertised. Places were awarded by competitive application, with funding awarded to cover travel, accommodation, subsistence and all training costs. For every delegate who attended, five applicants were unsuccessful.

The comprehensive programme combined: scientific talks; general lab training skills; specific virology and entomology lecture and practical work; workshops; field visits, career development, mentoring, and desk-based projects.

Across the fortnight delegates received plenty of peer mentoring and team-building input, as well as an afternoon focused on ‘communicating your science.’

New
collaborations will influence African agriculture for years to come

There’s little doubt that the June event, hosted by The University of Bristol, base of CONNECTED Network Director Professor Gary Foster, has sown seeds of new alliances and partnerships that can have global impact on vector-borne plant disease in Sub-Saharan Africa for many years to come.

CONNECTED network membership has grown in its 18 months to a point where it’s approaching 1,000 researchers, from over 70 countries. The project, which derived its funding from the Global Challenges Research Fund, is actively looking at still more training events.

The V4 training course follows two successful calls for pump-prime research funding, leading to nine projects now operating in seven different countries, and still many more to come. Earlier in the year CONNECTED ran a successful virus diagnostics training event in Kenya, in close partnership with BecA-ILRI Hub. One result of that training was that its 19 delegates were set to share their new knowledge and expertise with a staggering 350 colleagues right across the continent.

Project background

Plant diseases significantly limit the ability of many of Sub-Saharan African countries to produce enough staple and cash crops such as cassava, sweet potato, maize and yam. Farmers face failing harvests and are often unable to feed their local communities as a result. The diseases ultimately hinder the countries’ economic and social development, sometimes leading to migration as communities look for better lives elsewhere.

The CONNECTED network project is funded by a £2 million grant from the UK government’s Global Challenges Research Fund, which supports research on global issues that affect developing countries. It is co-ordinated by Prof. Foster from the University of Bristol School of Biological Sciences, long recognised as world-leading in plant virology and vector-transmitted diseases, with Professor Neil Boonham, from Newcastle University its Co-Director. The funding is being used to build a sustainable network of scientists and researchers to address the challenges. The University of Bristol’s Cabot Institute, of which Prof. Foster is a member, also provides input and expertise.

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This blog is written by Richard Wyatt, Communications Officer for the CONNECTED network.

Bristol is Global Competition 2019 – a student response to the global food crisis

Posted on April 29, 2019April 3, 2023 by janet.crompton

Bristol Is Global finalists

Food – not one of us would be able to live without it and crucially, this obvious fact is understated. In the global north, with fast food delivery services available at our fingertips and supermarkets stocked with shelves of tinned cans, frozen meals and fresh fruit and veg, it is unsurprisingly easy to take food for granted. In an increasingly globalised world, where much of our food travels miles across oceans and roads, it is ever more common to find ourselves alienated from the cycles and processes that start in the soil and end up at the tip of our knives and forks. Our disconnection to food is significant given that the global food industry is in a hidden environmental crisis: a crisis of social, cultural, historical, economic, political, and geographical significance. As students, we recognise that if climate demands are not met within our lifetimes: water scarcity, diseases, droughts, floods, and the acidification of oceans will impact the security of our food in irrepressible ways (Empson 2016: 77-8).

And so, this year, Bristol is Global (BiG) asked students to address the question:

How can the university, students and the wider public address the problems with the local and global food industry?

Focusing on three sub-categories:

Food waste
The hunger-obesity paradox
Single-use plastic packaging.

BiG is an annual, university-wide competition organised by students that is themed around a different global socio-political challenge each year, with the winning team being awarded £500. The competition provides an opportunity for students from different disciplines to collaboratively develop a solution to a global problem on a local scale, founded on the belief that no global challenge will ever be resolved by one person, but rather a collective effort of countless individuals each making small actions.

To introduce the theme, Joy Carey, an expert in sustainable food planning who is currently a member of the Bristol Food Policy Council along with Natalie Fee, an environmental campaigner against plastic pollution, gave inspiring talks to launch the competition. This was followed by a panel debate to help students better understand the complex issue at hand a panel event took place. Representatives from Bristol Waste Company, Fair Trade Network, Community Farm, as well as our own Professor Jeffrey Brunstrom engaged in a thought provoking discussion with the students.

This year, the four finalist teams came up with four creative and diverse ideas that could potentially have a significant impact on the Bristol community:

RecycleWise: A comprehensive information pack distributed to second year flats educating students on good recycling practices.
Bright: An all-inclusive app with tutorial videos, interactive maps and reward schemes to encourage people to follow more sustainable eating habits.
Eat Well Bristol: Student-volunteer run holiday cooking sessions in primary schools to make organic and healthy eating more accessible to underprivileged families in Bristol.
Green Brewery Initiative: Growing indoor crops and herbs using plastic bottles rather than pots and used coffee grounds instead of fertiliser to engage the University community in reducing waste.

Members from LettUs Grow, a successful University of Bristol start-up developing vertical farming technology met with the teams to help them refine their pitch. In the final event, each team presented their ideas to a panel of judges. The quality of research and originality in each proposal was truly impressive, as well as the passion and enthusiasm shown by all four teams. The judges ultimately decided to chip in an extra £100 and fund two teams, the Bright App and RecycleWise, as well as providing continued support to all four teams to carry on with their projects. With Bristol Going for Gold (Bristol’s ambition to become the first Gold Award Sustainable Food City in the UK by 2020), each proposal has tremendous potential to help the city reach its goal.

As organisers of BiG we would like to thank the Cabot Institute for providing invaluable support throughout the competition. We would also like to extend our thank you to the Alumni Grant Foundation for funding to further help the teams implement their ideas.

Next year BiG will return with a different socio-economic issue, challenging students to come up with solutions that can truly help the Bristol community in different ways. We hope to engage more students and encourage the entire university community to engage in the issues we face.

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This blog was written by Lina Drozd, Usha Bholah and Smruthi Radhakrishnan, all students at the University of Bristol.

World Water Day: How can research and technology reduce water use in agriculture?

Posted on March 21, 2019April 3, 2023 by janet.crompton

Record breaking temperatures in 2018 led to drought in many European countries. Image credit Wikimedia Domain Mimikry11.

World Water Day draws attention to the global water crisis and addresses why so many people are being left behind when it comes to having access to safe water. The UN estimates that globally 80% of people who have to use unsafe and unprotected water sources live in rural areas. This can leave households, schools, workplaces and farms struggling to survive. On farms water is vital for the production of food and is used in a huge range of processes, including irrigation and watering livestock. In this blogpost I will lightly review the current issues around water in agriculture and highlight some exciting research projects that may offer potential solutions.

What is the water crisis?

The UN Sustainable Development Goal 6 is to ensure that all people have access to sustainable, safe water by 2030. Unfortunately, we’re a long way off achieving this goal as a recent report from UNICEF/WHO estimates that there are currently 2.1 billion people living without access to safe water in their homes and workplaces. Another report estimates that 71% of the global population experiences severe water scarcity during at least one month of the year. In recent years we have seen water risks increase, with severe droughts in Africa, China, Europe, India and the US. In sub-Saharan Africa, the number of record breaking dry months increased by 50% from 1980 to 2013. Unfortunately droughts, floods and rising sea levels are predicted to continue and become more unpredictable under climate change scenario models and as the global population continues to grow, there will be increasing demands on water supplies. Increases in water scarcity are likely to lead to increases in political and economic instability, conflict and migration.

Why is water important to agriculture?

In agriculture, water is vital for growing crops and sustaining livestock. Farmers use water to irrigate, apply pesticides and fertilizer and protect from heat and frost. This heavy reliance means that when water supplies run out, farmers are unable to effectively maintain their crops and livestock, leading to food insecurity. Drought stress can result in yield losses of 64% in rice, 50% in chickpea, 18 – 32% in potato. Drought has particularly devastating effects in tropical and sub-tropical regions, where climate change is predicted to have the biggest impact.

The amount of water it takes to produce food and drink products is pretty shocking. Beef production in particular is associated with high levels of water usage. It is estimated that the global average water footprint of a 150g beef burger is 2350 litres; despite producing just 5% of the world’s food calories, beef production is reported to create 40% of the water scarcity burden. Although there are big variations in the environmental impacts of beef farming, with grassland fed, rotational systems being less intensive than grain fed herds on deforested land.

Where does water used for agriculture come from?

The water that is used in agriculture comes from a range of sources, including surface and ground water supplies, rivers and streams, open canals, ponds, reservoirs and municipal systems. Globally, the FAO estimates that agriculture accounts for 70% of freshwater withdrawals, which is predominately used for irrigation. In many areas the high level of groundwater used for irrigation is unsustainable, leading to depletion. For instance, the OECD estimates that groundwater supplies 60% of India’s agricultural water needs but groundwater sources are suffering from depletion and pollution in 60% of states. A big problem is that irrigation is often highly inefficient; in the US the FAO estimates that the amount of irrigated water that is actually used by plants is only 56%. Large amounts of energy are also needed to withdraw, treat and supply agricultural water, leading to significant greenhouse gas (GHG) emissions.

What happens to agricultural water after use?

As well as depleting freshwater supplies, agriculture can also pollute them, with runoff containing large quantities of nutrients, antibiotics, growth hormones and other chemicals. This in turn has big affects on human health through contamination of surface and ground water with heavy metals, nitrate and pathogens and in the environment; it can cause algal blooms, dead zones and acidification of waterways. Combined these issues mean that better management of water in agriculture has huge potential for improving sustainability, climate resilience and food security, whilst reducing emissions and pollution.

What are the potential solutions?

Thankfully there are many innovative projects that are working to improve issues around water in agriculture. Below are a few examples that I find particularly promising.

How can technology help?

To reduce water wastage on farms, agri-technology is being developed whereby multiple wireless sensors detect soil moisture and evapotranspiration. The sensors feed this information to a cloud-based system that automatically determines precisely how much water to use in different parts of the field, leading to increased yields and saving water. Farmers can get water management recommendations via a smartphone app and the information automatically instructs irrigation systems. At a larger scale, these data systems can feed into a regional crop water demand model to inform decision-making on agricultural policies and management practices, and to provide early warnings of potential flood and drought risks.

Sensor that detects leaf moisture levels. Image credit: Wikimedia Domain Massimiliano Lincetto

Irrigation systems are also being made more efficient; one study found that simply changing from surface sprinklers to drip irrigation that applies water directly to plant roots through low-pressure piping, reduced non-beneficial water wastage by 76%, while maintaining yield production. In arid areas these systems can be used for a technique called partial root drying, whereby water is supplied to alternate side of the roots, the water stressed side then sends signals to close stomatal pores which reduces water lost through evapotranspiration.

These efficient precision irrigation systems are becoming cheaper and easier for farmers to use. However in tropical and sub-tropical areas, the technology can be difficult to apply smallholder farming, where there is often insufficient Internet connectivity, expertise, capital investment, and supply of energy and water. Several precision agriculture projects are working to overcome these challenges to promote efficient use of irrigation water, including in the semi-arid Pavagada region of India, the Gash Delta region of Sudan and São Paulo, Brazil. In Nepal, a Water Resources Information System has been established that collects data to inform river management, whereas in Bangladesh hundreds of solar-fuelled irrigation pumps have been installed that simultaneously reduce reliance on fossil fuels and reduce GHG emissions.

Hydroponic systems whereby plants are grown in water containing nutrients are becoming increasingly popular; the global market for hydroponics is projected to reach £325 million by 2020. Compared with land-based agriculture, hydroponics uses less land; causes less pollution and soil erosion and so these systems are less vulnerable to climate change. Critically they also reduce water use; once the initial water requirements are met, the closed-system recycles water and there is less evapotranspiration. The adoption of these systems is predicted to occur predominately in water stressed regions of the Middle East and Africa and in highly urbanised countries such as Israel, Japan and the Netherlands.

How can researching traditional approaches help?

It’s not just about agri-tech; there are relatively simple, traditional ways to tackle water issues in agriculture. To protect against drought, farmers can harvest and store rainwater during heavy downpours by building ponds and storage reservoirs. To reduce water wastage, farmers can improve the ability of soil to absorb and hold water through reducing tillage and using rotational livestock grazing, compost, mulch and cover crops. Wetlands, grasslands and riparian buffers can be managed to protect against floods, prevent waterlogging of crops and improve water quality. Increasingly these traditional methods valued and research is being done to optimise them. For instance a novel forage grass hybrid has been developed that is more resilient to water stress and can reduce runoff by 43 – 51% compared with conventional grass cultivars.

A small-scale farmer in Kenya who is harvest rainwater. Image credit: Wikimedia Domain Timothy Mburu.

How can crop and livestock breeding help?

In the past, crop and livestock varieties have been selected for high productivity. However, these varieties are often severely affected by changes in climate and extreme weather events such as drought and require high levels of water and nutrients. To improve resilience and sustainability, breeders increasingly need to also select for stress responses and resource use efficiency. In crops, drought resilience and water use efficiency is influenced by many traits, including root and shoot architecture, stomatal density and thickness of the waxy cuticle that covers leaves and reduces evapotranspiration. The complexity of these traits makes breeding crops for drought resilience challenging, as many different groups of genes need to be selected for. To deal with this, the International Rice Research Institute’s Green Super Rice project has been crossing high-yielding parent lines with hundreds of diverse varieties to produce new high-yielding varieties that require less water, fertilisers and pesticides. These varieties are now being delivered to farmers in countries across Asia and Africa. Similarly, climate change resilience is also vital for current and future livestock farming. Projects run by Professor Eileen Wall (SRUC) have identified novel traits and genes associated with drought and heat resilience in UK and African dairy cattle, which can be incorporated into breeding programmes.

What are the incentives?

Although these projects might sound promising, without incentives to drive their uptake it may take a long time for real impacts to come to fruition. Unfortunately, in some countries such as India there can be a lack of monetary incentives that would effectively enable farmers to take up new water management technology and practices. In the EU, the Common Agricultural Policy (CAP) has allocated funds to support farmers in complying with ‘greening rules’ that improve sustainability, preserve ecosystems and efficient use of natural resources, including water. Farmers across the EU receive CAP payments for environmentally friendly farming practices, such as crop diversification and maintaining permanent grassland.

In many European countries, there is increasing consumer demand for sustainably farmed food products. This is driving large and small manufacturers to seek out sustainable suppliers and so farmers are incentivised to improve the sustainability of their farming practices so that they can be certified. For instance the Sustainable Farming Assurance Programme requires farmers to follow good agricultural and environmental protection practices, including sustainable water use. In the coming years, more food products are likely to have water foot print labels that provide the consumer with information on the amount of water used during production and processing. This places considerable power in the hands of the consumer and large manufacturers are responding. For instance, by 2020 Kellogg has pledged to buy ten priority ingredients (corn, wheat, rice, potatoes, sugar and cocoa) only from farms that prioritise protecting water supplies, as well as using fertilizers safely, reducing emissions, and improving soil health. And Pepsico has created sustainable agriculture sourcing programmes that aim to help farmers improve water and soil resource management, protect water supplies, minimise emissions and improve soil health.

What can we do?

There are ways to take responsibility for reducing our own water footprints, including reducing meat and animal production consumption, reducing food wastage and buying sustainably farmed products. Finally, we can all get involved with communicating and promoting the importance of water in agriculture so that more people are aware of the issues. Head to the World Water Day website to find out about resources and events that may be happening near you.

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This blog is written by Caboteer Dr Katie Tomlinson, who recently completed her PhD at the University of Bristol on cassava brown streak disease. Katie is now an Innovation and Skills manager at the BBSRC and is running the Sustainable Agriculture Research and Innovation Club. Views presented in this blog are her own. You can follow Katie on Twitter: @KatieTomlinson4.

Dr Katie Tomlinson

Travelling through Asia’s breadbasket

Posted on October 29, 2018April 3, 2023 by janet.crompton

This is the second of a series of blogs from a group of University of Bristol Cabot Institute researchers who are on a remote expedition (funded by BCAI) to find out more about Kazakh agriculture and how farmers are responding to their changing landscape.

Image credit: Hannah Vineer

Queen’s ‘Bohemian Rhapsody’ played on the car radio as we drove through endless fields of stubble stretching into the horizon in every direction. We were 2 days into our 3-day, 2,345km journey from Astana to our field site, and it was easy to see why Kazakhstan is referred to as Asia’s breadbasket. Spring had finally arrived after an unusually long winter. Tractors were busy burning, ploughing and planting, disappearing into the distance with each pass of the field.

The vast, flat steppe has provided the opportunity for cereal production on a scale unrivalled by the UK’s comparatively small field enclosures. In 2017, Kazakhstan held wheat stocks of 12MMT (million metric tonnes), making UK’s 1.4MMT seem like a drop in the ocean by comparison. Kazakhstan exports wheat globally and is a key player in global food security. Grain elevators capable of storing more than 100,000 tonnes of grain dominate the skyline of every major town and soon became a familiar feature of the landscape to us.

Image credit: Hannah Vineer

Our journey was punctuated every 6 hours or so by stops at restaurants that seemed to appear out of nowhere. Each one was as unique as the last, their bright colours a reflection of the cheerful nature of the Kazakh people. The popular Tabletkas parked outside reminded me of VW Transporters, and the friendly locals reminded me of my Welsh roots, where strangers greet you on the street.

Image credit: Hannah Vineer

The restaurants served a range of traditional Kazakh comfort food – meat and milk based meals like borscht, always served with bread, of course. Bread, or нан (pronounced naan) is a staple food here and is said to be the most important part of the dinner table. The menu, written in the Cyrillic alphabet, was indecipherable to me at first and I had to pester the Kazakh and Russian members of our team to help me choose a meal each time. Based on my excited reaction when I finally discovered the image recognition feature of my Google Translate app, you would have thought that I had never seen modern technology before. In truth, I was just relieved to not be such a burden on the rest of team!

Image credit: Hannah Vineer

Before long we were back on the road and as the hours passed I looked forward to getting to camp and getting started with our work. We planned to visit remote villages, thousands of kilometres off the tourist track, to survey farmers about how they cope with weather extremes such as this year’s particularly harsh winter. But for now, we had run out of time and energy. The sun was setting and we needed to find a place to rest for the night. We headed for the dim twinkling lights of Aktobe, passing a tractor working into the night, illuminating a cloud of dust in its wake. When we eventually found a motel with rooms available, I found it difficult to sleep. I couldn’t wait for the final leg of our journey to our wild camp in the Kazakh steppe.

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This blog is written by Cabot Institute member Hannah Rose Vineer. This expedition has been kindly funded by the Bristol Centre for Agricultural Innovation. This blog was reposted with permission from the BCAI blog site.

Setting off on a BCAI expedition to Kazakhstan

Posted on October 25, 2018April 3, 2023 by janet.crompton

This is the first of a series of blogs from a group of University of Bristol Cabot Institute researchers who are on a remote expedition (funded by BCAI) to find out more about Kazakh agriculture and how farmers are responding to their changing landscape.

Abandoned machinery. Image credit Hannah Vineer.

Ghost towns on the Kazakh steppe look as though they are centuries old, but it is an illusion. They have been sandblasted relentlessly by the force of the steppe since they were abandoned, less than 40 years ago, after the breakdown of the Soviet Union. This is one area on earth that people have largely failed to tame, but as the human population increases the country’s agricultural systems are rapidly developing and focus is turning to the steppe once again. At the same time, farmers must adapt to recent changes in climate – drier summers limit crop production and water availability, and changing patterns of snowfall and snowmelt threaten the lives of livestock. I am about to embark on a remote expedition to find out more about Kazakh agriculture and how farmers are responding to their changing landscape. Follow this blog series for updates from the field.

Since 2000, approximately 5,000,000 additional hectares of land have been sown for cropping, and approximately 2,000,000 each additional sheep, cattle and horses are kept in Kazakhstan. This increase in livestock productivity is largely driven by smallholder farmers, who rely on livestock for up to a fifth of their family’s food. However, climate change has been felt disproportionately in Central Asia, threatening food security. National Geographic recently reported that over half a million animals failed to survive the winter in neighbouring Mongolia due to a combination of lethal winter conditions and poor summer crop growth, so I’m anxious to see how the Kazakhs fared.

Image credit: mapchart.net

I’m told that in the Ural region in Western Kazakhstan, wheat production, livestock and wildlife exist in close contact, and that this is the best place to start my research. I’m set to fly to Astana tomorrow to join colleagues from the Association for the Conservation of Biodiversity of Kazakhstan (ACBK) on the three-day, 2,000km journey to the far west. With the help of ACBK and Bristol PhD student Munib Khanyari, I will interview farmers spread out over an area the size of England, skirting along the Russian border and the Caspian Sea. I’ll spend my evenings wild camping off-grid under the stars for 2-3 weeks. There will be no fresh water, no toilets and no internet – the team and I have to carry everything we need in order to survive the duration. Wish me luck!

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Africa looking to strategic partnerships to rein in food and nutrition insecurity

Posted on September 27, 2018April 13, 2023 by janet.crompton

A child feeds on orange fleshed sweet potato in Central Uganda – Image credit ‘Winnie Nanteza/NARO-Uganda’

World hunger continued to rise for the third consecutive year according to the UN’s Food and Agriculture Organization (FAO)’s latest report. The data identifies climate variability as one of the major contributing factors to this worrying statistic. The intricate relationship between climate change and food security culminates in a major challenge that has rattled individuals, organisations and governments alike for decades. In the coming decades, Africa—which faces the biggest food security challenge in present times—will need more strategic partnerships to unlock its food security potential.Nearly one in every nine people—a significant proportion of whom live in Sub-Saharan Africa—go to bed hungry every night. So significant is this challenge that the United nations lists ending hunger, achieving food and nutrition security and promoting sustainable agriculture by 2030 second of its 17 Sustainable Development Goals (SDGs).

It is a daunting challenge made worse by an exploding global population set to hit 9 billion by 2050. Nonetheless, governments and other stakeholders worldwide are drawing inspiration from the fact that, despite the increases of the past three years, hunger overall has reduced by almost half in the past two decades. This has been made possible through deliberate efforts to increase agricultural production with minimal environmental impact.

Contemporary Agricultural Science Technology and Innovations (STIs) are pivotal to increasing agricultural production, food security, and promoting economic growth in Africa. However, realizing these aspirations greatly depends on leveraging the synergistic capabilities of the diverse actors within the sector towards building stronger partnerships and increased accountability for greater impact.

The nature of Agricultural Research for Development (AR4D) paradigms around the world is rapidly evolving, with new technologies constantly emerging and making the agricultural sector more knowledge intensive and innovations driven. In addition, the role of the private sector in agricultural R&D is increasingly more prominent, with Public-Private Partnerships (PPPs) being touted as an ideal model for accelerating technology transfer, commercialization, and delivery of research outputs to end-users for optimal research impact. Innovative partnerships between the public and private sectors are especially important for attracting investments and financing innovative solutions for agriculture in developing nations.

To drive this innovative and responsive research agenda, scientists globally are increasingly coming together in collaborative partnerships to share resources towards ensuring that the world will be able to feed nine billion people by 2050.

Among these is the Community Network for African Vector-Borne Plant Viruses (CONNECTED)—a Vector-borne Disease Network awarded to the University of Bristol—which held its Africa Launch Conference in May 2018. The network—which is closely involved with the Cabot Institute—aims inter alia to build a sustainable network of multi-disciplinary international scientists, to deliver solutions to devastating crop diseases.

Participants at the CONNECTED Network Africa Launch, May 2018

Three months on, and the Network is already making good on its promise. Following the first CONNECTED pump prime funding call soon after the Network’s Africa launch, research funding grants have been awarded to Network members working in African and European research institutions in classic triangular collaborations to achieve the ideals of the Network.

In August 2018, global science leaders congregated in Durban, South Africa for the inaugural Bio Africa convention. The conference provided opportunities to build capacity and drum up support for increased investment in, and support for Africa’s growing biotech industry. It is hoped that networks built there will enrich the implementation of past and existing Africa-led initiatives for growth and sustainable development, especially in the bio-economy sector.

While food is an easy topic to get people involved with, rising concerns about some aspects of agricultural technology bring unique dynamics to this area. A July 25 ruling by the European Court of Justice imposed exacting regulatory restrictions on the use of gene editing in crop improvement. This adds to existing regulatory stalemates—mostly in Europe and Africa—blocking the use of products of modern agricultural technologies such as genetic engineering and gene editing to deliver important crop varieties to the world’s most vulnerable people.

In Uganda for instance, genetically modified biofortified and bacterial wilt resistant bananas, and blight resistant potatoes remain locked up in confined field trials due to the absence of an enabling regulatory environment for commercialisation. Research is on-going—using genetic engineering—on virus resistant cassava, insect resistant and drought tolerant maize, and nitrogen use efficient rice among other key food security crops.

The ebb and flow of global politics and science remains a determinant factor in whether or not agricultural STIs can contribute to ending hunger by 2030 per the SDGs. Cognizant of the constraints new breeding technologies are facing to deliver impact, initiatives like Uganda Biosciences Information Center (UBIC) have been established to support the stewardship process to ensure that key agricultural technologies reach the people that need them most.

This is achieved through creating and raising awareness of modern agricultural biosciences and biosafety, to facilitate balanced, fact-based and objective discourse on modern biosciences in Uganda and beyond. Elsewhere, the Open Forum on Agricultural Biotechnology (OFAB), International Service for Acquisition of Agri-biotech Applications (ISAAA) and Cornell Alliance for Science to mention but a few, are championing the same cause at regional and global levels.

In many ways gentle calls to action, such initiatives complement the millions of voices highlighting the global food challenge and imploring all humanity to spring to action to ensure that everyone has a seat at the (dining) table.

Policy coherence and coordination among different actors to end hunger remains key to delivering much needed solutions to global food and nutrition security. To end hunger, targeted steps must be taken to help people access the tools they need to create agricultural prosperity and progress. But we can’t just hope and pray, we have to take action—and Africa seems to be beginning to do just that!

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This blog was written by Joshua Raymond Muhumuza, CONNECTED Network member and Outreach Officer at the Uganda Biosciences Information Center (UBIC).

Coconuts and climate change

Posted on July 3, 2018April 4, 2023 by janet.crompton

Before pursuing an MSc in Climate Change Science and Policy at the University of Bristol, I completed my undergraduate studies in Environmental Science at the University of Colombo, Sri Lanka. During my final year I carried out a research project that explored the impact of extreme weather events on coconut productivity across the three climatic zones of Sri Lanka. A few months ago, I managed to get a paper published and I thought it would be a good idea to share my findings on this platform.

Climate change and crop productivity

There has been a growing concern about the impact of extreme weather events on crop production across the globe, Sri Lanka being no exception. Coconut is becoming a rare commodity in the country, due to several reasons including the changing climate. The price hike in coconuts over the last few years is a good indication of how climate change is affecting coconut productivity across the country. Most coconut trees are no longer bearing fruits and those that do, have nuts which are relatively very small in size.

Coconut production in Sri Lanka

Sri Lanka is among the top 5 largest producers of coconut, alongside Indonesia, Philippines, India and Brazil (FAOSTAT, 2014). Coconut is one of the major plantation crops in Sri Lanka and is second only to rice in providing nutrition (Samita & Lanka, 2000). Coconut cultivation represents 1/5th of the agricultural land of the country and significantly contributes to Sri Lanka’s Gross Domestic Product, export earnings and employment (Fernando et al., 2007).

Mature coconuts develop approximately eleven months after inflorescence opening (Figure 1). Of this, the first three months after inflorescence opening is said to be the most critical period as the young nuts are susceptible to climatic variation (Ranasinghe et al., 2015).

Figure 1: Development stages of a coconut bunch (Source: Coconut Research Institute, Sri Lanka)

The coconut yield is influenced by climatic variables such as rainfall, temperature and relative humidity in addition to other external factors such as pest attacks, diseases, crop management, land suitability and nutrient availability (Peiris et al., 2008). Optimum weather conditions for the growth of coconut include a well distributed annual rainfall of about 1500 mm, a mean air temperature of 27°C and relative humidity of about 80-90% (Peiris et al., 1995).

Impact of extreme weather on coconut productivity

Our study analysed the impact of extreme weather events considering daily temperature and rainfall over a 21-year period (between 1995 and 2015) at selected coconut estates in the wet, dry and intermediate zones of Sri Lanka. The study revealed drought conditions during the first four months after inflorescence opening, had a negative impact on the coconut harvest in the dry and intermediate zones (as revealed by the statistical analyses and the model relationships developed in this study). Possible reasons for this include reduced pollen production due to the exposure of male flowers to elevated temperature (Burke, Velten, & Oliver, 2004) and flower and fruit abortions caused by high temperatures and absence of rainfall over an extended period of time (Nainanayake et al., 2008).

Drought conditions not only disrupt the physiological functions of the coconut palm, but also
contribute to incidences of pest attacks. At present, the Coconut Black Beetle and the Coconut Red
Weevil pose the greatest threat to coconut plantations in Sri Lanka. Drought conditions are very
conducive for Coconut Black Beetles to pupate deep in the soil (Nirula, 1955).

Implications of the findings

This study reinforces the importance of raising awareness on the implications of climate change on crop productivity. During my visits to the coconut plantations, the superintendents of the estates as well as the labourers appeared to be aware of the warming trend of the climate. They had adopted soil moisture conservation methods such as mulching, burying coconut husks and growing cover crops to prevent extreme evapotranspiration. These are short term solutions. If we are to think about sustaining the coconut cultivation in the long-term, it is important to focus our efforts on developing drought tolerant hybrids. Global climate is projected to change continuously due to various natural and anthropogenic reasons. Policy makers and market decision makers can utilize the knowledge on how coconuts respond to drought conditions to formulate better policies and prices. This information can enable us to be better prepared and minimize loss and damage caused by a drought resulting from climate change.

References

Burke, J. J., Velten, J., & Oliver, M. J. (2004). In vitro analysis of cotton pollen germination. Agronomy Journal, 96(2), 359–368.

FAOSTAT. (2014). Retrieved January 7, 2017, from http://www.fao.org/faostat/en/#data/QC/visualize

Fernando, M. T. N., Zubair, L., Peiris, T. S. G., Ranasinghe, C. S., & Ratnasiri, J. (2007). Economic Value of Climate Variability Impacts on Coconut Production in Sri Lanka.

Nainanayake, A., Ranasinghe, C. S., & Tennakoon, N. A. (2008). Effects of drip irrigation on canopy and soil temperature, leaf gas exchange, flowering and nut setting of mature coconut (Cocos nucifera L.). Journal of the National Science Foundation of Sri Lanka, 36(1), 33–40.

Nirula, K. K. (1955). Investigations on the pests of coconut palm. Part II Oryctes rhinoceros L. Indian Coconut Journal, 8(4), 30–79.

Peiris, T. S. G., Hansen, J. W., & Zubair, L. (2008). Use of seasonal climate information to predict coconut
production in Sri Lanka. International Journal of Climatology, 28, 103–110. http://doi.org/10.1002/joc

Peiris, T. S. G., Thattil, R. O., & Mahindapala, R. (1995). An analysis of the effect of climate and weather on coconut (Cocos nucifera). Journal of Experimental Agriculture, 31, 451–460.

Ranasinghe, C. S., Silva, L. R. S., & Premasiri, R. D. N. (2015). Major determinants of fruit set and yield fluctuation in coconut (Cocos nucifera L .). Journal of National Science Foundation of Sri Lanka, 43(3), 253–264.

Samita, S., & Lanka, S. (2000). Arrival Dates of Southwest Monsoon Rains – A Modeling Approach. Tropical Agricultural Research, 12, 265–275.

Acknowledgements: This post is based on a paper published with the support and guidance from my supervisors/ co-authors Dr Erandi Lokupitiya (University of Colombo, Sri Lanka), Dr Pramuditha Waidyarathne (Coconut Research Institute, Sri Lanka) and Dr Ravi Lokupitiya (University of Sri Jayewardenepura, Sri Lanka).

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This blog is written by Cabot Institute member Charuni Pathmeswaran.

Charuni Pathmeswaran

Food Connections

Posted on June 20, 2018April 4, 2023 by janet.crompton

Last week the Bristol Food Connections festival explored “all that is GREAT about food in Bristol (and beyond)” [1]. This made me realise that what I am exploring are the separations in our global food system. While so much of food in Bristol is ‘GREAT’ there is still much work to do about what is NOT SO GREAT. In the global food system, the separations between those who produce and those who consume what is transported around the world are many: income, origin, lifestyle, language, history, opportunities, culture, diet, microbiome – you name it there are separations in the way we eat and live.

This weekend I co-facilitated an event, Philosophy Breakfast: The ethics of global food production, with Julian Baggini, philosopher and author of the book, Virtues of the table: How to eat and think, [2]. Julian focused our thoughts on ethics and justice, and I grounded us with a case study, on tomatoes produced in Morocco, based on my recent fieldwork. We were treated, literally, to food for thought, in the form of a breakfast bap and coffee from the Boston Tea Party as well as a full house of attendees ready and willing to reflect on their role in the food systems. I was determined that this group, who had been motivated enough to get up for a 10 am Sunday start, also be given space to tell us what we should be considering in relation to the ethics of food. So, we invited each table to choose a breakfast food element to reflect upon, bread, coffee, tea, bacon, tomatoes and mushrooms, as they slowly digested its nutrients and food dilemmas.

Framing the session Julian considered our role as consumers by drawing on the thoughts of some classical philosophers from Plato to Sen: we should not, he suggested, be afraid of always getting everything right, but we should at least do our best to avoid contributing to what we find clearly morally wrong. How to go about this? I asked our participants to think of questions which might help us reflect on each of the breakfast items to help us consider these dilemmas. Furthermore, perhaps we might have questions for others; for the supermarkets, for the governments, and for the companies involved. My favourite question from this savvy group was, for meat: “was it worth an animal dying for me to eat this?” something that connects to my blog on the great value of seeing meat as sacrifice: ‘L hawli‘.

My talk related more to the question about coffee, “What labour standards (how bad would they be) would stop you buying coffee?”. What a question. International labour standards usually boil down to a mutual agreement that the countries involved in trade will apply their national labour laws. They may also be required to ensure that these national laws meet international standards, but what are these international standards? Since the 1998 ILO Declaration on Fundamental Principles and Rights at Work (ILO, 1998) [3], international labour law has been focused, or in practice narrowed, depending on your perspective, to just eight core conventions covering four areas (collective bargaining, forced labour, child labour, non-discrimination at work), out of a possible 189 conventions covering many other very important areas [4]. So this is a relatively weak starting point, which in most cases simply attempts to ensure already existing minimum standards (laws) are implemented.

What happens also, when national laws do not meet the needs of workers? Too often agricultural work is excluded from normal labour standards, or minimum wages are lower in this sector. This is not just the case in poorer countries. In the USA, the world’s richest state, many agricultural workers are exempted from minimum wage and overtime entitlements of the main national labour legislation, the Fair Labour Standards Act [5]. This is discrimination sanctioned by law.

Such discrimination between agriculture and other sectors is also the case in Morocco, where I carried out fieldwork. Whilst the legal minimum wage in other sectors is £8.29, the minimum day wage for agricultural workers is significantly lower at £5.37. OK, you may think, but life is cheaper there. Not that much cheaper. We can convert that minimum agricultural wage to a UK equivalent via the Purchasing Power Parity formula, (or PPP) this tells you what the equivalent wage would be in the UK. That equivalent of that minimum agricultural wage in a UK context with UK housing, food and other costs would be £13.51. This is not enough to live comfortably, barely enough to survive.

This is why then, the first findings chapter of my thesis is entitled “No Money”. If a major supply chain, feeding us year round with produce that we increasingly depend upon, rests on a starting point of an unreasonably low minimum wage, we cannot consider this a socially sustainable global food connection. And it is a connection. Although we are separated by distance, language, culture and long food chains, it was not difficult to find tomatoes just on our doorstep. Even last week when the ‘counter-season’ was officially over (as we now produce more in the UK so there is less market for non-EU producers) I could easily identify tomatoes in Bristol from a major company in business just outside of Agadir, Morocco (where my research is focused). I know workers from this company’s greenhouses and packhouses and spent months in daily conversations with them about what needs to change. They are calling for increases in wages and working conditions, better childcare and better social infrastructure. The separations then, are there to be bridged.

Transparency came up a lot on the morning of our event. How is there so much information about the attributes of food itself, and so little about those that produce it? We can only find out about food if actors involved in the sector are willing to be open (governments, retailers, employers). This showed at the Bristol Fruit Market, which I also visited as part of the Food Connections festival. The openness of the owners to discuss their business and show us around their distribution centre was in very clear contrast to the supermarket distribution centres which are shrouded in secrecy. Yet this is not the case at every stage of the process and it is only by asking questions, and showing that we care, that we can have any leverage at all to shift the harshest dynamics of global food systems.

Why are wages so low in the food sector? How can we revalue food? How can we keep alternative routes to market going (such as through wholesale)? How do we know if workers are treated fairly? What does that mean? How can we improve social and labour conditions in global production? These some of the questions that I am working on at the moment.

Groups feed back from their discussions at the Philosophy Breakfast event 17 June 2018

[1] Bristol Food Connections Festival website

[2] BAGGINI, J. 2014. The virtues of the table: How to eat and think, Granta Books.

[3] ILO 1998. ILO Declaration on fundamental principles and rights at work. International Labour Conference. Geneva: International Labour Office.

[4] A list of the 189 ILO conventions

[5] See, Guide to the Fair Labor Standards Act

[6] This is known locally as the difference of the SMIG, the minimum legal industrial wage, and the SMAG, the minimum legal agricultural wage. The SMIG is set by the hour (13.46 Moroccan Dirhams). An 8-hour equivalent of the SMIG comes to the GBP of £8.29. This can then be compared to the minimum agricultural wage, set by the day at 69.73 Moroccan Dirhams, equivalent to £5.37 per day.
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This blog is written by Cabot Institute member Lydia Medland and has been reposted with kind permission from her original blog. Lydia is from the School of Sociology, Politics and International Studies at the University of Bristol.

Lydia Medland

Find out more about the Cabot Institute’s Food Security research theme.

Pollination and International Development: How bees can help us fight poverty and feed the world

Posted on June 19, 2018April 5, 2023 by janet.crompton

Animal pollinators are the industrious workers in the factory of life – transporting pollen from one flower to another to ensure successful fertilisation. 75% of our crop plants benefit from this free service which can increase the yield, quality and even shelf-life of their products. This translates to a US$235-577bn value to global agriculture each year. Many of our favourite foods – strawberries, coffee and cocoa – can end up shrivelled and tasteless without pollination. This ecosystem service is under increasing threat however, as pollinators face the potent cocktail of pressures we have laid upon them, declining in numbers across various parts of the world.

But what has all this got to do with international development? From what we can tell, communities in developing countries [1] are more reliant on pollinators than almost anyone, standing to lose important income, livelihoods, nutrition and cultural traditions if pollinators decline. And yet, although a number of researchers across the developing world have made substantial and important contributions to this field, limited resources and capacity have meant that only a small proportion of pollination research has focused on these regions. In fact, there isn’t even enough data to know what is happening to pollinators in the developing world, let alone how we can best conserve them and their values to human wellbeing.

Over two billion people in developing countries are reliant on smallholder farming and therefore indirectly reliant on pollinators, without necessarily knowing it. Many valuable cash crops, for example coffee, cocoa and cashews, are highly pollinator dependent and almost exclusively grown in the developing world, providing income for millions of people. In fact the reliance on pollinator-dependent crops has increased faster in the developing world than anywhere else. Reliance on beekeeping for income and livelihoods has also increased and is becoming a common component of sustainable development projects worldwide.

Worryingly, declines in pollination will have deeper consequences than just the loss of crop yields and income. Because many of the most nutritionally important food groups such as fruits, nuts and vegetables are also the most pollinator-dependent, pollinator declines are likely to shift the balance of people’s diets away from these foods. As a result, many millions of people around the world, particularly in developing countries, are expected to become deficient in important micronutrients such as vitamin A, vitamin C, iron and folate, resulting in millions of years of healthy life lost.

So what is being done about all this? In recognition of the importance of pollinators to human welfare and the threats facing them, the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) commissioned a global assessment of Pollinators, Pollination and Food Production, published in 2016. This triggered a great wave of political and media attention and has resulted in the incorporation of the report’s key findings into the Convention on Biological Diversity (CBD). Many governments are now in the process of developing national pollinator strategies, including the developing nations of Brazil, Argentina, Colombia, South Africa and India. On this wave of momentum, the CBD has also requested the UN Food and Agriculture Organisation (FAO) to update their International Pollinator Initiative (IPI) which aims to build greater understanding, management and conservation of pollinators around the world. This international attention won’t last forever though, so it is important that the current momentum is sustained and built upon as soon as possible, ensuring as many countries as possible – particularly in the developing world – are involved.

The UK has a valuable opportunity to contribute to these efforts. As a centre of excellence for pollination science, it is the second largest funder and producer of pollination research after the US. But only c.6% of the £95M we have contributed to pollination research in the last 10 years has any link or collaboration with a developing country (ÜberResearch 2018). As more of the UK’s Official Development Assistance budget is made available for research, there is a shift in emphasis towards research that directly contributes towards international development. New funding programmes are encouraging the UK research community to engage in collaborative projects with researchers in developing countries, building valuable research capacity. With the relevance of pollination and agro-ecology to addressing the UN’s Sustainable Development Goals, these topics may fit into this new funding landscape. However, to be effective and ethical, partners and institutions in developing countries must be involved in the design of, and stand to benefit from these collaborations. See here for a UKCDS report outlining the ways in which academics and funders can help ensure fair partnerships.

As populations in the developing world expand, along with per-capita food demands, these issues become all the more pressing. Food production will need to increase by 70% come 2050 and this cannot be achieved by simply expanding agricultural land or fertilizer input. To ensure people are well-fed, in a way that is sustainable and ethical, we will have to intensify our farming in new ways. Understanding and managing pollination may be an important part of this and is something that researchers, politicians, agriculturalists and development workers will need to engage with sooner rather than later.

[1] For simplicity, we use the term ‘developing countries’ to refer to all countries listed in the Organisation for Economic Co-operation and Development’s (OECD) Development Assistant Committee (DAC) list of Official Development Assistance (ODA) recipients. This includes countries from a range of economic classifications, from ‘Least Developed’ to ‘Upper Middle Income’ which includes the nations of China and Brazil. Whilst we group all these nations under the broad term of ‘developing country’, we acknowledge the great heterogeneity between them in terms of wealth, development and research capacity.

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This blog has been kindly reposted from the UK CDS website. It is written by Cabot Institute member Thomas Timberlake, a pollination ecology PhD researcher from the University of Bristol who undertook a three month project with the UKCDS looking at the relevance of pollination to international development.

Thomas Timberlake

To find out more about this project you can view the full report, or watch a recording of the UKCDS Pollination and International Development Webinar.

You can also listen to Tom speaking on Nature Xposed, a University of Bristol nature radio station, about the importance of pollinators in developing countries.

If you have any comments about this blog do tweet us @cabotinstitute @UKCDS.