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Recent work has shown that current bio-energy policy directives may have harmful, indirect consequences, affecting both food security and the global climate system. An additional unintended but direct effect of large-scale biofuel production is the impact on local and regional climate resulting from changes in the energy and moisture balance of the surface upon conversion to biofuel crops. Using the latest version of the WRF modeling system we conducted twenty-four, midsummer, continental-wide, sensitivity experiments by imposing realistic biophysical parameter limits appropriate for bio-energy crops in the Corn Belt of the United States. In the absence of strain/crop-specific parameterizations, a primary goal of this work was to isolate the maximum regional climate impact, for a trio of individual July months, due to land-use change resulting from bio-energy crops and to identify relative importance of each biophysical parameter in terms of its individual effect. Maximum, local changes in 2 m temperature of the order of 1C occur for the full breadth of albedo (ALB), minimum canopy resistance (RCMIN) and rooting depth (ROOT) specifications, while the regionally (105W-75W and 35N-50N) and monthly averaged response of 2 m temperature was most pronounced for the ALB and RCMIN experiments, exceeding 0.2C. The full range of the albedo variability associated with biofuel crops may be sufficient to drive regional changes in summertime rainfall. Individual parameter effects on 2 m temperature are additive, highlight the cooling contribution of higher leaf area index (LAI) and ROOT for perennial grasses (e.g., Miscanthus) versus annual crops (e.g., maize), and underscore the necessity of improving location- and vegetation-specific representation of RCMIN and ALB.

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Publication Type
Journal Articles
Publication Date
Journal Publisher
Geophysical Research Letters
Authors
Matei Georgescu
David Lobell
Christopher B. Field
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I will provide an overview of current ideas for devising a nuclear fuel cycle that minimizes proliferation risks, ranging from alternatives to the current method of spent fuel reprocessing to novel reactor designs.  While the ultimate conclusion should not be a surprise - 'proliferation-proof technology' in indeed an (double) oxymoron - it is nevertheless important to recognize the role that probabilistic risk assessment can and should play in assessing the relative merits of proposed technologies.

Dr. Robert Rosner is a visiting professor at CISAC for 2009-2010.  He is the William E. Wrather Distinguished Service Professor in the departments of Astronomy & Astrophysics and Physics at the University of Chicago.  Dr. Rosner recently stepped down as Director of Argonne National Laboratory, where he had also served as Chief Scientist.

Professor Rosner's research is mostly in the areas of plasma astrophysics and astrophysical fluid dynamics and magnetohydrodynamics (including especially solar and stellar magnetic fields); high energy density physics; boundary mixing instabilities; combustion modeling; applications of stochastic differential equations and optimization problems; and inverse methods.

"I have continued research interest overlap with the DOE/ASCI Flash Center at Chicago (which I led for its first five years); this Center has been a pioneer in the development of computational astrophysics codes with broad applicability to other disciplines; and I have been closely involved in that Center's research activities in flame modeling and interfacial mixing. I have also been involved with a Wisconsin/Chicago/Princeton NSF-supported Physics Frontier Center focusing on problems lying at the boundary of astrophysics and laboratory plasma physics, mostly in areas related to magnetohydrodynamic instabilities in low Prandtl number fluids (such as liquid metals, or stellar interiors).

"In addition over the past 7+ years -- through my work at Argonne National Laboratory - I became heavily involved in issues related to science and technology policy and management, especially in areas related to energy, climate, and modeling and simulations, national security, as well as (via my chairmanship of the Department of Energy National Laboratory Directors' Council as well as my work with the Council on Competitiveness) with national policy issues related to STEM workforce development, nuclear and renewable energy technology development, and the role of national laboratories in scientific, technological, and industrial competitiveness, including the relationship between national laboratories, academia, and industry."

Reuben W. Hills Conference Room

Robert Rosner CISAC Visiting Professor Speaker
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The global nuclear order is changing. Concerns about climate change, the volatility of oil prices, and the security of energy supplies have contributed to a widespread and still-growing interest in the future use of nuclear power. Thirty states operate one or more nuclear power plants today, and according to the International Atomic Energy Agency (IAEA), some 50 others have requested technical assistance from the agency to explore the possibility of developing their own nuclear energy programs. This surge of interest in nuclear energy - labeled by some proponents as ‘the renaissance in nuclear power' - is occurring simultaneously with mounting concerns about the healthy of the nuclear nonproliferation regime, the regulatory framework that constrains and governs the world's civil and military- related nuclear affairs. The question then arises: is it possible to have nuclear power without nuclear proliferation? The answer is not clear, for the technical, economic, and political factors that will determine whether future generations will have more nuclear power without more nuclear proliferation are exceedingly complex and interrelated. Dr. Sagan will outline the current state of nuclear power and nuclear proliferation, before examining the weaknesses and promise of existing research on the subject. He argues that a key aspect of ensuring a safe nuclear future will be the strengthening of the NPT through "shared responsibility" for disarmament.

Scott Sagan is a professor of political science and co-director of Stanford's Center for International Security and Cooperation. Before joining the Stanford faculty, Sagan was a lecturer in the Department of Government at Harvard University and served as a special assistant to the director of the Organization of the Joint Chiefs of Staff in the Pentagon. He has also served as a consultant to the office of the Secretary of Defense and at the Sandia National Laboratory and the Los Alamos National Laboratory.

Sagan is the author of Moving Targets: Nuclear Strategy and National Security (Princeton University Press, 1989), The Limits of Safety: Organizations, Accidents, and Nuclear Weapons (Princeton University Press, 1993), and with co-author Kenneth N. Waltz, The Spread of Nuclear Weapons: A Debate Renewed (W.W. Norton, 2002). He is the co-editor of Peter R. Lavoy, Scott D. Sagan, and James L. Wirtz, Planning the Unthinkable (Cornell University Press, 2000) and the editor of Inside Nuclear South Asia (Stanford University Press, 2009). His most recent publications include "The Case for No First Use," Survival (June 2009) and "Good Faith and Nuclear Disarmament Negotiations" in George Perkovich and James A. Acton (eds.) Abolishing Nuclear Weapons: A Debate (Carnegie Endowment, 2009).

Allen S. Weiner is senior lecturer in law and co-director of the Stanford Program in International Law at Stanford Law School. He is also the co-director of the Stanford Center on International Conflict and Negotiation. His expertise is in the field of public international law and the foreign relations law of the United States. He is a seasoned international lawyer with experience in such wide-ranging fields as national security law, the law of war, international dispute resolution, and international criminal law. His current scholarship focuses on international law and the response to the contemporary security threats of international terrorism and the proliferation of weapons of mass destruction. For more than a decade he practiced international law in the U.S. Department of State, serving as an attorney-adviser in the Office of the Legal Adviser and as legal counselor at the U.S. Embassy in The Hague. In those capacities, he advised government policy-makers, negotiated international agreements, and represented the United States in litigation before the Iran-United States Claims Tribunal and the International Court of Justice. He teaches courses in public international law, international conflict resolution, and international security matters at Stanford Law School. He received a BA from Harvard College and a JD from Stanford Law School.

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CISAC
Stanford University
Encina Hall, E202
Stanford, CA 94305-6165

(650) 725-2715 (650) 723-0089
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The Caroline S.G. Munro Professor of Political Science
The Bass University Fellow in Undergraduate Education  
Senior Fellow, Freeman Spogli Institute for International Studies
rsd25_073_1160a_1.jpg PhD

Scott D. Sagan is Co-Director and Senior Fellow at the Center for International Security and Cooperation, the Caroline S.G. Munro Professor of Political Science, and the Bass University Fellow in Undergraduate Education at Stanford University. He also serves as Co-Chair of the American Academy of Arts and Sciences’ Committee on International Security Studies. Before joining the Stanford faculty, Sagan was a lecturer in the Department of Government at Harvard University and served as special assistant to the director of the Organization of the Joint Chiefs of Staff in the Pentagon.

Sagan is the author of Moving Targets: Nuclear Strategy and National Security (Princeton University Press, 1989); The Limits of Safety: Organizations, Accidents, and Nuclear Weapons (Princeton University Press, 1993); and, with co-author Kenneth N. Waltz, The Spread of Nuclear Weapons: An Enduring Debate (W.W. Norton, 2012). He is the co-editor of Insider Threats (Cornell University Press, 2017) with Matthew Bunn; and co-editor of The Fragile Balance of Terror (Cornell University Press, 2022) with Vipin Narang. Sagan was also the guest editor of a two-volume special issue of DaedalusEthics, Technology, and War (Fall 2016) and The Changing Rules of War (Winter 2017).

Recent publications include “Creeds and Contestation: How US Nuclear and Legal Doctrine Influence Each Other,” with Janina Dill, in a special issue of Security Studies (December 2025); “Kettles of Hawks: Public Opinion on the Nuclear Taboo and Noncombatant Immunity in the United States, United Kingdom, France, and Israel”, with Janina Dill and Benjamin A. Valentino in Security Studies (February 2022); “The Rule of Law and the Role of Strategy in U.S. Nuclear Doctrine” with Allen S. Weiner in International Security (Spring 2021); “Does the Noncombatant Immunity Norm Have Stopping Power?” with Benjamin A. Valentino in International Security (Fall 2020); and “Just War and Unjust Soldiers: American Public Opinion on the Moral Equality of Combatants” and “On Reciprocity, Revenge, and Replication: A Rejoinder to Walzer, McMahan, and Keohane” with Benjamin A. Valentino in Ethics & International Affairs (Winter 2019).

In 2022, Sagan was awarded Thérèse Delpech Memorial Award from the Carnegie Endowment for International Peace at their International Nuclear Policy Conference. In 2017, he received the International Studies Association’s Susan Strange Award which recognizes the scholar whose “singular intellect, assertiveness, and insight most challenge conventional wisdom and intellectual and organizational complacency" in the international studies community. Sagan was also the recipient of the National Academy of Sciences William and Katherine Estes Award in 2015, for his work addressing the risks of nuclear weapons and the causes of nuclear proliferation. The award, which is granted triennially, recognizes “research in any field of cognitive or behavioral science that advances understanding of issues relating to the risk of nuclear war.” In 2013, Sagan received the International Studies Association's International Security Studies Section Distinguished Scholar Award. He has also won four teaching awards: Stanford’s 1998-99 Dean’s Award for Distinguished Teaching; Stanford's 1996 Hoagland Prize for Undergraduate Teaching; the International Studies Association’s 2008 Innovative Teaching Award; and the Monterey Institute for International Studies’ Nonproliferation Education Award in 2009.     

Co-director of the Center for International Security and Cooperation
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Date Label
Scott D. Sagan Co-Director of CISAC and Professor of Political Science Speaker
Allen S. Weiner Senior Lecturer in Law; Co-Director, Stanford Program in International Law; Co-Director, Stanford Center on International Conflict and Negotiation; CDDRL and CISAC Faculty Member; Forum on Contemporary Europe Research Affiliate Speaker
Seminars

Mobile phones are transforming lives in low-income countries faster than ever imagined.  The effect is particularly dramatic in rural areas of sub-Saharan Africa, where mobile phones have often represented the first modern infrastructure of any kind.  The iconic image of cell phones in Africa is the market woman, surrounding by her goods while making calls to potential clients in the capital city.  Equally common are the slogans of mobile phone companies promising a better life for those who use it. 

Yet do these images and slogans reflect the reality of what cell phones can do?  Cell phones are being adopted by the rural and urban poor at a surprising rate, far exceeding cell phone companies' projections. An emerging body of research suggests that mobile phones are improving households' access to information and reducing costs, thereby making markets more efficient and increasing incomes.  These impacts have occurred without NGOs or donor investments - but as a positive externality from the IT sector.

Governments, donors and NGOs have noticed the potential of information technology in achieving development goals in a variety of sectors, including agriculture, education, health, financial services and governance.  Mobile phones can greatly facilitate the effectiveness of development programs, but are needed in partnership with the private sector. And while cell phone coverage reaches over 60% of the population in most African countries, other constraints to cell phone adoption - namely pricing and handset cost - should be addressed.

Jenny Aker has worked extensively in Central, North and West Africa for the past ten years for NGOs, international organizations and universities. Her research uses field work and field experiments to better understand field-driven development problems, primarily by teaming up with NGOs and program implementers in an effort to link research with policy and implementation.

Jenny is currently involved in three main areas of research. The first assesses the impact of information technology (mobile phones) on development outcomes, namely farmers’ and traders’ welfare, market performance, labor outcomes, literacy rates and early warning systems. Based upon her previous work in Niger, she is collaborating with Catholic Relief Services in Niger on Project ABC (Alphabétisation de Base par Cellulaire), which uses cell phones as a learning tool to allow literacy participants to read and write in their local languages via SMS. The project takes a rigorous impact evaluation approach, assessing the impact of cell phones on literacy rates and farmers’ marketing behavior. Her second area of research involves assessing the impact of climate change on farmer-herder conflicts in the Sahel, with a particular focus on Mali. Her third area of research evaluates the impact of specific development interventions -- including food aid distributions, local purchases, and cash vouchers – on producers’ welfare and market performance in the Sahel.

In September 2009, Jenny joined Tufts University as an Assistant Professor in the Economics Department and Fletcher School of Law and Diplomacy.

Wallenberg Theater

Jenny Aker Assistant Professor Speaker Fletcher School, Tufts University
Seminars
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(Excerpt) According to climate scientists, averting the worst consequences of climate change requires that the increase in global temperature should be limited to 2°C (or 3.6°F). to achieve that objective, global emissions of green house gases (GHGs)—the main human cause of global warming—must be reduced to 50 percent of 1990 levels by 2050.

The key to successful climate change abatement at those scales lies in leveraging the collective actions of developed and developing countries. Cumulatively, developed countries have been responsible for most human emissions of GHGs. that picture will be quite different in the future as emissions from the developing world take over the top mantle. Given this dynamic, there is a general agreement internationally that developed countries will lead emissions reductions efforts and that developing countries will follow with “nationally ap- propriate mitigation actions.” turning that agreement into environmentally beneficial action requires close international coordination between the developed and developing countries in allocating the responsibility for the necessary reductions and following up with credible actions. However, the instruments employed so far to promote the necessary collective action have proved to be insufficient, unscalable, and questionable in terms of environmental benefit and economic efficiency.

Currently, the most important and visible link be- tween developed and developing countries’ efforts on climate change is the Clean development Mechanism (CdM). the CdM uses market mechanisms—the “carbon markets”—to direct funding from developed countries to those projects in developing countries that lead to reductions in emissions of warming gases. In reality, the experience with the CdM has been mixed at best since its inception in 2006. while the CdM has successfully channeled funding to many worthy projects that reduce emissions of warming gasses, it has also spawned myriad projects with little environmental benefits. overall, the CdM has led to a significant overpayment by developed countries for largely dubious emissions reductions in developing countries.

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Harvard International Review
Authors
Varun Rai
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Programs to distribute improved biomass stoves have traditionally been unsuccessful, despite enormous potential health and climate benefits. This research note helps explain the reasons for this by considering three main prerequisites for technology adoption by the poor. The first success factor is motivation on the part of customers to adopt the new product. When motivation does not exist initially, it must be created through education, social marketing, or improved design. The second essential component is that the product be affordable, be it through disposable income, financing, or subsidies. Finally, the success of a product is dependent on the level of user engagement necessary to take advantage of it.

Improved cookstoves rank poorly on all three dimensions: their benefits are rarely valued highly by customers at the outset, they are expensive, and they require a significant change in lifestyle to be put into use.

These three potential barriers to adoption are relevant to any product aimed at consumers at the "bottom of the pyramid" in income. They help explain why some products (for example, Coca-Cola and cell phones) have penetrated markets rapidly while others such as cookstoves have achieved very limited penetration.

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Publication Type
Working Papers
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Journal Publisher
Program on Energy and Sustainable Development, Working Paper #89
Authors
Xander Slaski
Mark C. Thurber

RSVP's are no longer being accepted due to space limitations.

The Stanford China Program and the Academy of Macro-Economic Research at the National Development and Reform Commission, China’s leading policy agency, present the first in a series of conferences that will examine the responses of both China and the United States to the global economic crisis, one year after it commenced. 

Experts from the US and China will look at the impact of stimulus policies adopted in both countries on growth, economic restructuring, and bilateral cooperation.  They will also examine the impact of the global economic downturn on environmental protection and resource conservation policies, and explore prospects for the adoption of new technologies to mitigate climate change and spur economic growth in both countries.

See agenda for speaker and panel details.

Note:  Majority of participants have requested we not post presentations.

Bechtel Conference Center

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