Science, Technology, and Public Policy

Nuclear security around the world has improved dramatically over the last three decades—which demonstrates that with focused leadership, major progress is possible. But important weaknesses remain, and the evolution of the threat remains unpredictable. The danger that terrorists could get and use a nuclear bomb, or sabotage a major nuclear facility, or spread dangerous radioactive material in a “dirty bomb,” remains too high. The United States and countries around the world need to join together and provide the leadership and resources needed to put global nuclear security on a sustained path of continuous improvement, in the never-ending search for excellence in performance.

China began producing highly enriched uranium (HEU) and plutonium for nuclear weapons in the 1960s and is believed to have halted production the 1980s. Despite the passage of thirty years there has been no official policy declaration in this regard. This report uses newly available public information from Chinese sources to provide an improved reconstruction of the history of China’s production of HEU and plutonium for nuclear weapons. This allows improved estimates of the amount of HEU and plutonium China has produced and of its current stockpiles.

The promise, prospects, and public policy trade-offs related to second-generation biofuels in road transport were addressed in an executive session convened at The Henry Ford Museum in Dearborn, Michigan, on April 7 and 8, 2015. The workshop brought together twenty-eight of the world's leading experts from the fields of policy, science, and business for an intensive two-day session. This report is a summary of the main points and issues raised over the two days. It has been reviewed by all the participants. The summary is intended to reflect the breadth of the discussion, rather than to suggest any form of overall consensus among the participants.

The promise, prospects, and public policy trade-offs related to the greater use and production of second-generation biofuels were addressed in an executive session convened by the Harvard Kennedy School on November 13 and 14, 2014. The session attracted more than 25 of the world's leading experts from the fields of policy, science, and business for an intensive two day session. The agenda consisted of three sessions focused on (i) the sustainability of cellulosic supply chains, (ii) government policy options to attract investment and (iii) government policy options to ensure that environmental objectives are met.

"The focus of the workshop was on the demonstration stage of the technology innovation cycle. Current policies do not adequately address the private sector’s inability to overcome the demonstration "valley of death" for new energy technologies. Investors and financiers fear that the technology and operational risks at this stage of the cycle remain too high to justify the level of investment to build a commercial-sized facility."

"There is broad political consensus that the current energy system in the United States is unable to meet the nation's future energy needs, from the security, environment, and economic perspectives. New energy technologies are required to increase the availability of domestic energy supplies, to reduce the negative environmental impacts of our energy system, to improve the reliability of current energy infrastructure (e.g., smart grid, energy storage), and to increase energy efficiency throughout the economy."

This paper provides an overview of water consumption for different sources of energy, including extraction, processing, and conversion of resources, fuels, and technologies. The primary focus of this paper is to summarize the consumptive use of water for different sources of energy. Where appropriate, levels of water withdrawals are also discussed, especially in the context of cooling of thermoelectric power plants.

This analysis provides an overview the Department of Energy's fiscal year 2011 energy research, development, demonstration, and deployment (ERD3) budget proposals, and lays out actionable recommendations to strengthen the effort.  Overall, the report concludes that the 7 percent requested increase in applied energy research, development, and demonstration funds, while welcome in a time of budget stringency, remains well short of the sustained investment likely to be needed to meet the energy demands of the 21st century.

Liquid biofuels can provide a substitute for fossil fuels in the transportation sector. Many countries have mandated the use of biofuels, by creating targets for their use. If not implemented with care, however, actions that increase biofuel production can put upward pressure on food prices, increase greenhouse gas (GHG) emissions, and exacerbate degradation of land, forest, and water sources. A strong global biofuels industry will not emerge unless these environmental and social concerns are addressed.

This paper investigates the relationship between the Corporate Average Fuel Economy (CAFE) program and the supply of biofuels in the United States.