“Anticipating the future is difficult in any situation, but assessing the prospects for nuclear power in the next fifty years presents especially complex challenges," write Katherine D. Marvel and Michael M. May in a new paper published by the American Academy of Arts & Sciences.

"The public perception of nuclear power has changed and continues to change. Once viewed as a miracle of modern technology, nuclear power came to be perceived by many as a potential catastrophe; now it is viewed as a potential, albeit potentially still dangerous, source of green power. Conventional wisdom in the 1960s held that nuclear power could dominate the electricity sectors of developed countries, while less than twenty years later, many predicted the complete demise of the U.S. nuclear industry following the Three Mile Island accident in 1979. Yet neither attitude fully forecast the situation today: a nuclear industry that is not dominant, but is far from dead. Indeed, the history of long-range planning for nuclear power serves as a caution for anyone wishing to make predictions about the state of the industry over the next half-century.

Nonetheless, it is critical to assess its role in the future energy mix: decisions taken now will impact the energy sector for many years. This assessment requires both a review of past planning strategies and a new approach that considers alternate scenarios hat may differ radically from business as usual. While a number of studies have explored the future of nuclear power under various circumstances, the purpose of this paper is to consider gamechanging events for nuclear energy.”

PESD Associate Director Mark Thurber and Research Associate Joseph Chang wrote "The Policy Tightrope in Gas-Producing Countries: Stimulating Domestic Demand Without Discouraging Supply" that helped frame the discussion at the 2011 Pacific Energy Summit in Jakarta, Indonesia. The study explores and assesses the policy options that gas-rich governments can use to develop domestic gas markets, with a focus on major Asian gas-producing countries.

Stanford seniors Jaclyn Tandler and Varun Sivaram have been awarded the The Firestone Medal for Excellence in Undergraduate Research and The William J. Perry Prize, respectively, for their theses on France's nuclear export policy and the U.S. military's approach to solar energy.

Both recipients are members of the Center for International Security and Cooperation's Undergraduate Honors Program in International Security Studies.

Tandler, an international relations major, wrote "Let Them Eat Yellow Cake: Understanding the History of France's Sensitive Nuclear Export Policy." After graduating from Stanford, she will begin work at the Carnegie Endowment for International Peace as a junior fellow in the Nuclear Policy Program.

Sivaram, an engineering physics and international relations major, wrote "Sunny Side Up: Characterizing the U.S. Military's Approach to Solar Energy Policy." He will be attending Oxford University on a Rhodes Scholarship next year, studying toward a PhD in physics.

The Firestone Medal recognizes the top 10 percent of all honors theses in social science, science, and engineering. The Perry Prize is awarded to a student for excellence in policy-relevant research in international security studies. 

New technologies can improve agricultural sustainability in developing countries, but only with the engagement of local farmers and the social and economic networks they depend on, say Stanford University researchers. Their findings are published in the May 23 online edition of the Proceedings of the National Academy of Sciences (PNAS).

"Most people tend to think that technology information flows to farmers through a direct pipeline from scientists, but that isn't true," said lead author Ellen McCullough, a former research fellow at Stanford's Program on Food Security and the Environment, now at the Bill and Melinda Gates Foundation.

The study was co-authored by Pamela Matson, dean of the School of Earth Sciences and senior fellow at the Woods Institute for the Environment at Stanford.

To better understand how farmers decide to adopt new technologies, the researchers interviewed growers, farm credit unions and agricultural experts in the Yaqui Valley in Sonora, Mexico – the birthplace of the "green revolution" in wheat and one of Mexico's most productive breadbaskets.

Matson and other Stanford researchers have been working in the Yaqui Valley for nearly 20 years. Among their objectives is demonstrating how science can inform agricultural policy in an area grappling with the kinds of environmental challenges that plague other intensive farming regions.

While Yaqui Valley supplies most of Mexico's wheat, the environmental costs are high, according to the Stanford researchers. Valley farms pollute local drinking water, wreck coastal ecosystems and foul the air with particulates that cause a variety of diseases.

"If scientists want to offer solutions to manage these environmental impacts, they need to understand what influences farmers' decisions about technology and production strategies," McCullough said.

Growers in Mexico's Yaqui Valley are more likely to adopt sustainable farming technologies that have been endorsed by local credit unions.

Credit union clout

In Yaqui Valley, credit unions hold sway among the majority of farmers, McCullough said. In addition to providing loans, crop insurance, fertilizer and seed, credit unions have taken over the government's role in providing technical expertise and management advice.

Valley growers also have a long history of working with the Mexico-based International Maize and Wheat Improvement Center, a world-renowned agricultural research center known by its Spanish acronym, CIMMYT.

But interviews conducted for the PNAS study revealed that most farmers take their cues from local credit unions and not from experts at CIMMYT. As an example, McCullough pointed to a collaborative effort between CIMMYT scientists and farmers to develop a nitrogen diagnostic tool that reduces fertilizer use without sacrificing crop yields.

The device, which gives real-time readings of nitrogen levels in the soil, proved early on that it could save farmers 12 to 17 percent of their profits. Yet most farmers rejected the new technology until CIMMYT researchers finally convinced credit union officials that it was a worthwhile investment.

"The most successful innovations that have been adopted by farmers in the Yaqui Valley have come from collaborations among researchers, farmers and local establishments, like the credit unions," McCullough said. Because of their considerable influence among farmers, credit unions should be included in any effort to effect environmental change in the region, she added.

"The Yaqui case negates the simplistic view of the one-way flow of scientific information from the agricultural research community to the user community," Matson said. "If researchers seek to produce relevant knowledge that ultimately influences decision making, they must recognize the dynamics of the local knowledge system and participate purposefully and strategically in it."

The research was supported with grants from the National Oceanic and Atmospheric Administration and the David and Lucile Packard Foundation.

Gang He joins others at the Aspen Environment Forum 2011 May 30 - June 2, 2011, in Aspen, Colorado. The Aspen Environment Forum Scholars Program provides opportunities for diverse, accomplished leaders in the field to attend the Aspen Environment Forum. Scholars are selected on the basis of their experience, achievements, and interest in energy and the environment, as well as their commitment and contributions to the field. Gang He's research focus has been on China's energy and climate policy, energy economics and energy modeling, renewable energy, and cleaner utilization of coal.

"Improved dialogue between the US and China on security issues can help reduce the potential for misperception and mistrust," writes Thomas Fingar in the Bulletin of the Atomic Scientists.

CISAC co-director Scott Sagan was a guest host on Stanford radio, KZSU-90.1, and discussed nonproliferation, Iraq, and the soundtrack to war and peace. Listen to his picks of songs on conflict, including The Clash, Bruce Springsteen, and Marvin Gaye.