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This study investigates the skill of linear methods for downscaling provincial-scale precipitation over Indonesia from fields that describe the large-scale circulation and hydrological cycle. The study is motivated by the strong link between large-scale variations in the monsoon and the El Nino - Southern Oscillation (ENSO) phenomenon and regional precipitation, and the subsequent impact of regional precipitation on rice production in Indonesia. Three different downscaling methods are tested across five different combinations of large-scale predictor fields, and two different estimates of regional precipitation for Indonesia.

Downscaling techniques are most skillful over the southern islands (Java and Bali) during the monsoon onset or transition season (Sep.-Dec.). The methods are moderately skillful in the southern islands during the dry season (May-Aug.), and exhibit poor skill during the wet season (Jan.-Apr.). In northern Sumatra downscaling methods are most skillful during Jan.-Apr. with little skill at other times of the year. There is little difference between the three different linear methods used to downscale precipitation over Indonesia. Additional analysis indicates that downscaling methods that are trained on the annual cycle of precipitation produce less-biased estimates of the annual cycle of regional precipitation than raw model output, and also show some skill at reconstructing interannual variations in regional precipitation. Most of the downscaling methods' skill is attributed to year-to-year ENSO variations and to the long-term trend in precipitation and large-scale fields.

While the goal of the present study is to investigate the skill of downscaling methods specifically for Indonesia, results are expected to be more generally applicable. In particular, the downscaling models derived from observations have been effectively used to debias the annual cycle of regional precipitation from global climate models. It is expected that the methods will be generally applicable in other regions where regional precipitation is strongly affected by the large-scale circulation.

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International Journal of Climatology
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David S. Battisti
Rosamond L. Naylor
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Center on Food Security and the Environment, Stanford University
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Rosamond L. Naylor
David S. Battisti
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In June 2009, a group of experts in climate science, crop modeling, and crop development gathered at Stanford University to discuss the major needs for successful crop adaptation to climate change. To focus discussion over the three day period, the meeting centered on just three major crops – rice, wheat, and maize – given that these provide the bulk of calories to most populations. The meeting also focused on two aspects of climate– extreme high temperatures and extreme low moisture conditions (i.e. drought) – that present substantial challenges to crops in current climate and are likely to become more prevalent through time. Other aspects of climate change such as more frequent flooding or saltwater intrusion associated with rising sea levels were not addressed, although they may also be important.

The current document is split into two sections:

  • a brief summary of material presented at the meeting on the current state of climate projections, crop modeling, crop genetic resources and breeding; and
  • the collective views of participants on major needs for future research and investment, which emerged from discussions over the three day meeting.

The main target audiences for the document are donor institutions seeking to invest in climate adaptation, and climate and crop scientists seeking to set research agendas. We intend the term donor institutions to include private foundations, governments, and inter‐governmental organizations such as the World Bank and United Nations. An underlying assumption of the Stanford meeting was that there is a real and growing need to identify specific investment opportunities that will improve food security in the face of climate change. This is reflected, for instance, by the recent G8 announcement of a $20B investment in food security, the expectation of additional resources for adaptation from the Copenhagen Conference in 2009, and the emphasis of the Obama administration on food and climate issues.

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David Lobell
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Focusing on capture systems for coal-fired power plants until 2030, a sensitivity analysis of key CCS parameters is performed to gain insight into the role that CCS can play in future mitigation scenarios and to explore implications of large-scale CCS deployment.
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This paper analyzes the potential contribution of carbon capture and storage (CCS) technologies to greenhouse gas emissions reductions in the U.S. electricity sector.  Focusing on capture systems for coal-fired power plants until 2030, a sensitivity analysis of key CCS parameters is performed to gain insight into the role that CCS can play in future mitigation scenarios and to explore implications of large-scale CCS deployment.  By integrating important parameters for CCS technologies into a carbon-abatement model similar to the EPRI Prism analysis (EPRI, 2007), this study concludes that the start time and rate of technology diffusion are important in determining the emissions reduction potential and fuel consumption for CCS technologies. 

Comparisons with legislative emissions targets illustrate that CCS alone is very unlikely to meet reduction targets for the electric-power sector, even under aggressive deployment scenarios.  A portfolio of supply and demand side strategies will be needed to reach emissions objectives, especially in the near term.  Furthermore, the breakdown of capture technologies (i.e., pre-combustion, post-combustion, and oxy-fuel units) and the level of CCS retrofits at pulverized coal plants also have large effects on the extent of greenhouse gas emissions reductions.

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Program on Energy and Sustainable Development, Working Paper #85
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Varun Rai
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Professor Walter P. Falcon, Deputy Director of the Center on Food Security and the Environment (FSE), former director of FSI, and Helen Farnsworth Professor of International Agricultural Policy, Emeritus has been recognized with an honorary degree from McGill University for his research aimed at reducing world hunger and enhancing global food security.

Professor Falcon's expertise is in food policy, commodity markets, trade policies, and regional development. Professor Falcon's current research focuses on agricultural decision-making in Indonesia and Mexico, biotechnology, climate change, and biofuels.

From 1972 to 1991, Professor Falcon served as professor of economics and director of Stanford University's Food Research Institute, after which he directed the Freeman Spogli Institute for International Studies until 1998. From 1998 to 2007 he co-directed the Center for Environmental Science and Policy. At Stanford he has also served as senior associate dean for the social sciences, a member of the academic senate, and twice a member of the University's Advisory Board.

Professor Falcon has also consulted with numerous international organizations, been a trustee of Winrock International, and was chairman of the board of the International Rice Research Institute (IRRI). From 1978 to 1980, he was a member of the Presidential Commission on World Hunger and in 1990 was named a Fellow of the American Agricultural Economics Association. From 1996-2001 he served as chairman of the board of the International Corn and Wheat Institute (CIMMYT), and from 2001-07 served on the board of the Center for International Forestry Research (CIFOR).

Falcon was cited as the outstanding 1958 graduate of Iowa State University in 1989 and in 1992 was awarded the prestigious Bintang Jasa Utama medal of merit by the government of Indonesia for twenty-five years of assistance to that country's development effort.

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Ambassador Sheinwald discusses how he envisages international relations will form in the near and far future. He places particular emphasis on the growing importance of the US-China relationship. At the same time, Ambassador Sheinwald explores the EU as a key global power and its necessary cooperation with the US.

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Ambassador Sheinwald clearly feels that the international stage is moving. In fact, for him, the change in the international order is accelerating due to the global financial crisis. In this sense, Ambassador Sheinwald explains that the UK has long supported expanding decision-making international institutions such as the UN Security Council. However, the UK still sees the value in intimate, power-focused bodies such as the G8. Ambassador Sheinwald discusses the fact that there is increasingly a sense that a ‘G2’ is developing between the US and China. To Ambassador Sheinwald, this model would not literally work as he argues China needs, at this stage in its development, a multilateral setting to grow into the active and cooperative power we would all like to see it become. At the same time, Ambassador Sheinwald believes that the partnership between the US and China is important in paving a solution to the current economic state and shaping the future global economy. In fact, the UK and the EU welcome this new cooperation between the two powers. Ambassador Sheinwald feels the US and the EU can harness China’s shared global interest on issues such as climate change, in which the EU has played a front role, to develop at stable global relationship. Moreover, he believes that if the US and EU can cooperate to form low carbon economies, it could incentivize China and India to act similarly. However, Ambassador Sheinwald stresses that for non-economic issues the US and China’s relationship is still important but slow moving, and he expresses the belief that it will take decades for any real ‘G2’ to emerge.

In the meantime, Ambassador Sheinwald argues that while the US looks round the world for support on key issues, it will find that the EU shares the most values and has the capacity to promote them. He cites the enormous investments between the two in comparison to the US and China to show the scale of the US and the EU’s relationship. Ambassador Sheinwald argues that financially the US and EU need regulatory cooperation, using a scientific basis, to set global standards. He stresses as well that the EU is a major global power on its own. It is increasingly seen as an honest, multilateral broker and plays a crucial in global economic recovery. Moreover, it has strong interest in fighting world terrorism. In comparison to other partners, the US can find similar values, intelligence, and capacity in the EU. In addition, the US can see more stability in Europe’s own backyard than perhaps 20 years ago. Looking to the future, Ambassador Sheinwald hopes that the Lisbon Treaty would help the EU organize itself further. Further stressing the importance of the US-EU partnership, Ambassador Sheinwald explains “nothing is more likely to be as dependable a foundation.”

In taking the time to answer questions, Ambassador Sheinwald discusses a number of issues. One partiuclar area of focus much emphasized was Europe's role in the conflict in Afghanistan. In addition, he addresses the issue of Britain and the US's relationship with China. Moreover, he also explains that he hopes that as developed countries deal with increasing security threats, their resolve in keeping their borders open will remain strong. Finally, Ambassador Sheinwald stresses the need to employ methods of sustainable, intelligent, and low carbon growth.

About the Speaker

Nigel Sheinwald joined the British Diplomatic Service in 1976 and has served in Washington (twice), Brussels (twice) and Moscow and in a wide range of policy jobs in London. 

He took up his position as British Ambassador to the United States in October 2007.  In that role he leads the Embassy in Washington and nine Consulates-General around the United States.   He had an earlier posting to Washington in 1983-87 as First Secretary (Political) in the Embassy. 

Before becoming Ambassador in Washington, Sir Nigel served as Foreign Policy and Defence Adviser to the Prime Minister from 2003-2007.

Sir Nigel was the UK Ambassador and Permanent Representative to the European Union in Brussels from 2000-2003.  Before that he was Europe Director in the FCO (1998-2000).  He had an earlier posting in the UK Representation in 1993-95 as Head of its Political and Institutional Section.  He began his career in EU work as Deputy Head of the FCO's European Union Department in 1989-92. 

Sir Nigel's first foreign posting was in Moscow in 1978-79.  He was also Head of the Foreign Office's Anglo-Soviet Section in 1981-83.

Sir Nigel has had a wide variety of other appointments in the FCO in London.  From 1995-98, he was the FCO Press Secretary and Head of News Department.  He was Deputy Head of the Foreign Office's Policy Planning Staff in 1987-1989, responsible for transatlantic relations and other issues.  He also worked in London on the Japan Desk (1976-77) and on Zimbabwe (1979-81), including the Lancaster House Conference.

Sir Nigel was born in 1953 and educated at Harrow County Grammar School and Balliol College, Oxford.  He is married with three sons.

This event is jointly sponsored by the Office for International Visitors at the Bechtel International Center, the Forum on Contemporary Europe, and the British Consulate General in San Francisco.

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Sir Nigel Sheinwald British Ambassador to the United States Speaker
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[See video interview with Chris Field and David Lobell here].

Biofuels such as ethanol offer an alternative to petroleum for powering our cars, but growing energy crops to produce them can compete with food crops for farmland, and clearing forests to expand farmland will aggravate the climate change problem. How can we maximize our "miles per acre" from biomass?

Researchers writing in the May 7, 2009, edition of the journal Science say the best bet is to convert the biomass to electricity rather than ethanol. They calculate that, compared to ethanol used for internal combustion engines, bioelectricity used for battery-powered vehicles would deliver an average of 80 percent more miles of transportation per acre of crops, while also providing double the greenhouse gas offsets to mitigate climate change.
 
"It's a relatively obvious question once you ask it, but nobody had really asked it before," said study co-author Christopher B. Field, director of the Department of Global Ecology at the Carnegie Institution. "The kinds of motivations that have driven people to think about developing ethanol as a vehicle fuel have been somewhat different from those that have been motivating people to think about battery electric vehicles, but the overlap is in the area of maximizing efficiency and minimizing adverse impacts on climate."
 
Field, who is also a professor of biology at Stanford University and a senior fellow at Stanford's Woods Institute for the Environment, is part of a research team that includes lead author Elliott Campbell of the University of California-Merced and David Lobell of Stanford's Program on Food Security and the Environment.

Bioelectricity vs. ethanol

The researchers performed a life-cycle analysis of both bioelectricity and ethanol technologies, taking into account not only the energy produced by each technology, but also the energy consumed in producing the vehicles and fuels. For the analysis, they used publicly available data on vehicle efficiencies from the U.S. Environmental Protection Agency and other organizations.
 
Bioelectricity was the clear winner in the transportation-miles-per-acre comparison, regardless of whether the energy was produced from corn or from switchgrass, a cellulose-based energy crop. For example, a small SUV powered by bioelectricity could travel nearly 14,000 highway miles on the net energy produced from an acre of switchgrass, while a comparable internal combustion vehicle could only travel about 9,000 miles on the highway. (Average mileage for both city and highway driving would be 15,000 miles for a biolelectric SUV and 8,000 miles for an internal combustion vehicle.)
 
"The internal combustion engine just isn't very efficient, especially when compared to electric vehicles," said Campbell. "Even the best ethanol-producing technologies with hybrid vehicles aren't enough to overcome this."

Climate change 

The researchers found that bioelectricity and ethanol also differed in their potential impact on climate change. "Some approaches to bioenergy can make climate change worse, but other limited approaches can help fight climate change," said Campbell.  "For these beneficial approaches, we could do more to fight climate change by making electricity than making ethanol."
 
The energy from an acre of switchgrass used to power an electric vehicle would prevent or offset the release of up to 10 tons of CO2 per acre, relative to a similar-sized gasoline-powered car.  Across vehicle types and different crops, this offset averages more than 100 percent larger for the bioelectricity than for the ethanol pathway. Bioelectricity also offers more possibilities for reducing greenhouse gas emissions through measures such as carbon capture and sequestration, which could be implemented at biomass power stations but not individual internal combustion vehicles.
 
While the results of the study clearly favor bioelectricity over ethanol, the researchers caution that the issues facing society in choosing an energy strategy are complex. "We found that converting biomass to electricity rather than ethanol makes the most sense for two policy-relevant issues: transportation and climate," said Lobell. "But we also need to compare these options for other issues like water consumption, air pollution, and economic costs."
 
"There is a big strategic decision our country and others are making: whether to encourage development of vehicles that run on ethanol or electricity," said Campbell. "Studies like ours could be used to ensure that the alternative energy pathways we chose will provide the most transportation energy and the least climate change impacts."
 
This research was funded through a grant from the Stanford Global Climate and Energy Project, with additional support from the Stanford Program on Food Security and the Environment, UC-Merced, the Carnegie Institution for Science, and a NASA New Investigator Grant.

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In this new working paper PESD research affiliate Danny Cullenward studies the required rates of growth and capital investments needed to meet various long-term projections for CCS. Using the PESD Carbon Storage Database as a baseline, this paper creates four empirically-grounded scenarios about the development of the CCS industry to 2020. These possible starting points (the scenarios) are then used to calculate the sustained growth needed to meet CO2 storage estimates reported by the IPCC over the course of this century (out to 2100).

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Program on Energy and Sustainable Development, Working Paper #84
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