With 2011 already off to such a wet start in many parts of the world, concerns of what flooding will do to food prices and availability in the coming months are starting to creep into the news. In Sri Lanka, flooding has devastated rice crops, and in North Dakota, heavy rain and snow is already threatening the spring wheat crop. And all this after last summer's Russian drought and heat wave helped drive global wheat prices higher.
But while farmers have always had to contend with the vagaries of the weather, a question of increasing importance is how agriculture will be affected by the climate changes projected to occur over the next century. Many scientists are studying which regions of the world may be impacted the most by increasing temperatures and changing precipitation regimes, and what is bound to happen to the supplies of the world's biggest cash crops, like wheat, corn, rice and soybeans.
A new report, The Food Gap, was released last week from the Universal Ecological Fund, and it has muddied the waters even further. The report reviews how global climate change will affect the fate of crop yields and food prices in 2020. Unfortunately, the report actually misinterpreted the connection between atmospheric concentrations of greenhouse gases like carbon dioxide (CO2) and expected global temperature increases - despite the fact that recent reports from the U.N. Intergovernmental Panel on Climate Change and the National Academy of Sciences clearly identify the most current peer-reviewed understanding of this. The food study suggests that within 9 years, average global temperatures will be an average of 2.4°C warmer than during preindustrial times - or almost 1.5°C warmer than it was just last year.
This exceptionally high temperature projection is completely baseless, as NASA climate modeler Gavin Schmidt explained on the RealClimate blog - it's more likely that the planet will experience this kind of temperature change over 100 years, not merely one decade. Nevertheless, a number of news outlets published stories on the report's projections of how this dramatic climate change could impact the global food supply by 2020. Some publications posted corrections to their own stories, but I thought it would be helpful to take a step back and examine climate change and food security in 2020 and beyond. I spoke with Stanford University's David Lobell, who studies how climate change affects crop yields and food prices. He helped clarify what the current research says about climate change and food security.
Christopher Barrett reviews the evidence on persistent poverty with a focus on rural Africa. He emphasizes the importance of asset accumulation, productivity growth, risk management and the sociopolitical institutions that govern economic activity. Barrett's talk synthesizes lessons learned about what works, what doesn't and why, and identifies key topics in need of further investigation.
William Masters, Professor of Food Policy in the Friedman School of Nutrition at Tufts University, will join the conversation as a discussant following Barrett's presentation.
Biography
Christopher Barrett is the Stephen B. & Janice G. Ashley Professor of Applied Economics and Management and International Professor of Agriculture at Cornell University. He teaches and does research primarily in poverty and international development. His research program also has strong links to international, agricultural, environmental and micro economics as well as to applied econometrics. He is a Faculty Fellow and Associate Director, Economic Development Programs, at the new Cornell Center for a Sustainable Future. The Center is a major Cornell initiative aimed at promoting cutting-edge research on sustainable development in collaboration with key external partners to achieve significant real-world impact. He is also the Director of Cornell's Food Systems and Poverty Reduction IGERT program.
Christopher Barrett
Stephen B. & Janice G. Ashley Professor of Applied Economics and Management, International Professor of Agriculture
Speaker
Cornell University
William Masters
Professor of Food Policy
Commentator
Friedman School of Nutrition, Tufts
Symposiums
Global Food Policy and Food Security Symposium Series
Ousmane Badiane, Director for Africa at IFPRI, will talk about the investment and policy strategies needed for a dynamic agricultural sector, and how conditions in Africa differ from those in Asia.
Peter Timmer, Thomas D. Cabot Professor of Development Studies, Emeritus, at Harvard University, will join the conversation as a discussant following the main presentation.
Biography
Dr. Ousmane Badiane is the Africa Director for the International Food Policy Research Institute (IFPRI). In this role, he coordinates IFPRI's work program in the areas of food policy research, capacity strengthening, and policy communications in Africa. He is also in charge of IFPRI's partnerships with African institutions dealing with the above areas.
Dr. Badiane, a national of Senegal, was Lead Specialist for Food and Agricultural Policy for the Africa Region at the World Bank from January 1998 to August 2008. He previously worked at IFPRI as Senior Research Fellow from 1989 to 1997, when he led the institute's work on market reforms and development. While at IFPRI, he taught, as adjunct professor, at Johns Hopkins' School of Advance International Studies from 1993 to 2003. Dr. Badiane received a Masters Degree and PhD in agricultural economics from the University of Kiel in Germany.
Center on Food Security and the Environment
Encina Hall East, E400
Stanford, CA 94305
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ptimmer63@gmail.com
Thomas D. Cabot Professor of Development Studies, Emeritus, Harvard University
2720_image_PeterTimmerpg.jpg
C. Peter Timmer was a visiting professor at Stanford's Center on Food Security and the Environment in 2007. He is a leading authority on agriculture and rural development who has published widely on these topics. He has served as a professor at Stanford, Cornell, three faculties at Harvard, and the University of California, San Diego, where he was also the dean of the Graduate School of International Relations and Pacific Studies. A core advisor on the World Bank's World Development Report 2008: Agriculture for Development, Timmer also works with several Asian governments on domestic policy responses to instability in the global rice market. In 1992, he received the Bintang Jasa Utama (Highest Merit Star) from the Republic of Indonesia for his contributions to food security. He is an advisor to the Bill and Melinda Gates Foundation on agricultural development issues.
Timmer's work focuses on three broad topics: the nature of "pro-poor growth" and its application in Indonesia and other countries in Asia; the supermarket revolution in developing countries and its impact on the poor (both producers and consumers); and the structural transformation in historical perspective as a framework for understanding the political economy of agricultural policy.
Peter Timmer
Speaker
Symposiums
Global Food Policy and Food Security Symposium Series
This Statement summarizes the results of the third in a series of consultations between agricultural scientists (in particular those interested in the conservation and use of crop diversity in plant improvement) and climate scientists on how to adapt agriculture to climate change. The first meeting, also held at Bellagio (3-7 September 2007), looked at the Conservation and Use of Global Crop Genetic Resources in the Face of Climate Change. It identified three major challenges facing the adaptation process: collecting crop diversity before it disappears, using it to breed better adapted crops, and informing key players of the increased need for the conservation and effective use of crop genetic resources in the face of climate change.
The second meeting, held at Stanford University on 16-18 June 2009, looked more specifically at breeding, and in particular at Climate Extremes and Crop Adaptation. Among other things, it recommended that efforts to develop heat tolerant cultivars of the major cereals be intensified, and that greater investments be made in genotyping and phenotyping the variation already held in genebanks, and in collecting remaining diversity.
This third meeting in the series, and second at Bellagio, focused on a specific area of intersection between the ground covered by the previous consultations: the role of plants that are closely related to crops but are not themselves cultivated (crop wild relatives, or CWRs for short) in breeding cultivars better adapted to future climates. We structured the discussion into three sections, and summarize the results in the same way below. We also note that the tight focus of this short meeting on CWR is not meant to indicate that other strategies for adaptation are less worthwhile. For example, changes in agronomic practices, such as the adoption of conservation agriculture, may well be an effective adaptation strategy, and one that complements crop genetic improvement. It was also often noted that the use of CWRs is but one of many tools in the breeder's toolbox.
This paper aims to demonstrate the relationships between ENSO and rice production of Jiangxi province in order to identify the reason that ENSO might have little effect on Chinese rice production. Using a data set with measures of Jiangxi's climate and rice production, we find the reason that during 1985 and 2004 ENSO's well correlated with rainfall did not promote Chinese rice production. First, the largest effects of ENSO mostly occur in the months when there is no rice in the field. Second, there is almost no temperature effect. Finally, the monthly distribution of rainfall is almost the same in ENSO and neutral years because the largest effects are during months when there is the least rain. In addition, due to the high irrigation share and reliable and effective irrigation facilities of cultivated land, China's rice production is less climate-sensitive.
Deforestation is a main driver of climate change and biodiversity loss. An incentive mechanism to reduce emissions from deforestation and forest degradation (REDD) is being negotiated under the United Nations Framework Convention on Climate Change. Here we use the best available global datasets on terrestrial biodiversity and carbon storage to map and investigate potential synergies between carbon and biodiversity-oriented conservation. A strong association (rS= 0.82) between carbon stocks and species richness suggests such synergies would be high, but unevenly distributed. Many areas of high value for biodiversity could be protected by carbon-based conservation, while others could benefit from complementary funding arising from their carbon content. Some high-biodiversity regions, however, would not benefit from carbon-focused conservation, and could become under increased pressure if REDD is implemented. Our results suggest that additional gains for biodiversity conservation are possible, without compromising the effectiveness for climate change mitigation, if REDD takes biodiversity distribution into account.
Roughly a billion people around the world continue to live in state of chronic hunger and food insecurity. Unfortunately, efforts to improve their livelihoods must now unfold in the context of a rapidly changing climate, in which warming temperatures and changing rainfall regimes could threaten the basic productivity of the agricultural systems on which most of the world's poor directly depend. But whether climate change represents a minor impediment or an existential threat to development is an area of substantial controversy, with different conclusions wrought from different methodologies and based on different data.
This book aims to resolve some of the controversy by exploring and comparing the different methodologies and data that scientists use to understand climate's effects on food security. It explains the nature of the climate threat, the ways in which crops and farmers might respond, and the potential role for public and private investment to help agriculture adapt to a warmer world. This broader understanding should prove useful to both scientists charged with quantifying climate threats, and policy-makers responsible for crucial decisions about how to respond. The book is especially suitable as a companion to an interdisciplinary undergraduate or graduate level class.
