Science, Technology, and Public Policy

We here introduce the idea of highly decentralized solar geoengineering, plausibly done in form of small high-altitude balloons. While solar geoengineering has the potential to greatly reduce climate change, it has generally been conceived as centralized and state deployed. Potential highly decentralized deployment moves the activity from the already contested arena of state action to that of environmentally motivated nongovernmental organizations and individuals, which could disrupt international relations and pose novel challenges for technology and environmental policy. We explore its feasibility, political implications, and governance.

As Africa's position in the world continues to grow and evolve in 2014, the Brookings Africa Growth Initiative continues its tradition of asking its experts and colleagues to identify what they consider to be the key issues for Africa in the coming year.

Fourteen years since the Arms Control and Disarmament Agency (ACDA) was dissolved, Leon Ratz (HKS '13) explores the national security implications of the loss of America's independent arms control agency. Ratz argues that the organizational merger has weakened the federal government's decision-making and analytic capabilities when it comes to addressing critical arms control and non-proliferation challenges.

The unconventional fossil fuel extraction industry—in the U.S., primarily shale gas and tight oil—is expected to continue expanding dramatically in coming decades as conventionally recoverable reserves wane. At the global scale, a long-term domestic supply of natural gas is expected to yield environmental benefits over alternative sources of fossil energy. At the local level, however, the environmental impacts of shale gas and tight oil development may be significant. The development of technology, management practices, and regulatory policies that mitigate the associated environmental impacts of shale gas development is quickly becoming the next frontier in U.S. unconventional fossil resource extraction.

Working from a mandate from the 2010 Conference of the Parties to the UN Convention on Biological Diversity (CBD), this report compiles and synthesizes available scientific information on the possible impacts of geoengineering techniques on biodiversity, including preliminary information on associated social, economic, and cultural considerations.

The recent publications on WikiLeaks reveal a story about money, fame, sex, underground hackers, and betrayal. But it also involves fundamental questions regarding cyber-security and foreign policy. This paper argues WikiLeaks is only the symptom of a new, larger problem which is the result of technological advances that allow a large quantity of data to be 'stolen' at low or no cost by one or more individuals and to be potentially made public and to go 'viral', spreading exponentially online.

For the past forty years, United States Presidents have repeatedly called for a reduction in the country's dependence on fossil fuels in general and foreign oil specifically. Some officials advocate the electrification of the passenger vehicle fleet as a path to meeting this goal. The Obama administration has embraced a goal of having one million electric-powered vehicles on U.S. roads by 2015, while others proposed a medium-term goal where electric vehicles would consist of 20% of the passenger vehicle fleet by 2030 — approximately 30 million electric vehicles. The technology itself is not in question; many of the global automobile companies are planning to sell plug-in hybrid electric vehicles (PHEVs) and/or battery electric vehicles (BEVs) by 2012. The key question is, will Americans buy them?

This paper proposes a framework for a liability regime for geological sites for sequestration of carbon dioxide. It incorporates issues that were discussed at the the June 21, 2010 Expert Workshop Addressing CCS Liability, Oversight, and Trust Fund Issues.

Harvard Law School’s Emmett Environmental Law and Policy Clinic* supports immediate large-scale carbon capture and sequestration (“CCS”) demonstration projects as part of a larger national and global effort to address climate change. Large-scale CCS projects (those that sequester at least 1.5 million tons of captured carbon dioxide (“CO2”) annually) must be demonstrated soon to confirm CCS as a viable strategy to combat climate change and to show the commitment of the United States to achieving meaningful reductions in domestic CO2 emissions.

This paper summarizes the discussions from a workshop convened by the Harvard Law School's Emmett Environmental Law & Policy Clinic in Washington, DC on June 21, 2010.

There is broad consensus in scientific, business, and political circles that carbon capture and sequestration ("CCS") must be demonstrated quickly on a large scale because it is likely to be an important technology for reducing carbon dioxide ("CO2") emissions throughout the world. Indeed, a number of commentators predict that it may be impossible to achieve significant emissions reduction in the United States and abroad without the use of CCS.

Toxic inhalation hazard (TIH) chemicals such as chlorine gas and anhydrous ammonia are among the most dangerous of hazardous materials. Rail transportation of TIH creates risk that is not adequately reflected in the costs, creating a TIH safety and security externality. This paper describes and evaluates policy alternatives that might effectively mitigate the dangers of TIH transportation by rail. After describing the nature of TIH risk and defining the TIH externality, general policy approaches to externalities from other arenas are examined. Potential risk reduction strategies and approaches for each segment of the supply chain are reviewed. The paper concludes by summarizing policy options and assessing some of the most promising means to reduce the risks of transportation of toxic inhalation hazards. Four policy approaches are recommended: internalizing external costs through creation of a fund for liability and claims, improving supply chain operations, enhancing emergency response and focusing regulatory authority. It is further suggested that the Department of Transportation convene a discussion among stakeholder representatives to evaluate policy alternatives.