Environment & Climate Change

The Renewable Fuel Standard (RFS) is among the cornerstone policies created to increase U.S. energy independence by using biofuels. Although greenhouse gas emissions have played a role in shaping the RFS, water implications are less understood. We demonstrate a spatial, life cycle approach to estimate water consumption of transportation fuel scenarios, including a comparison to current water withdrawals and drought incidence by state. The water consumption and land footprint of six scenarios are compared to the RFS, including shale oil, coal-to-liquids, shale gas-to-liquids, corn ethanol, and cellulosic ethanol from switchgrass.

This article reviews the concept of an energy technology innovation system (ETIS). The ETIS is a systemic perspective on innovation comprising all aspects of energy transformations (supply and demand); all stages of the technology development cycle; as well as all the major innovation processes, feedbacks, actors, institutions, and networks.

Dramatic growth in nuclear energy would be required for nuclear power to provide a significant part of the carbon-free energy the world is likely to need in the 21st century, or a major part in meeting other energy challenges. This would require increased support from governments, utilities, and publics around the world. Achieving that support is likely to require improved economics and major progress toward resolving issues of nuclear safety, proliferation-resistance, and nuclear waste management. This is likely to require both research, development, and demonstration (RD&D) of improved technologies and new policy approaches.

The authors of this article propose, summarize, and present strategic ideas as policy implications for China's decision-makers. In conclusion, they determine that China should enhance strategic planning and regulation from a life cycle viewpoint of the whole society, prioritize energy saving, continuously improve incumbent energy, and rationally develop alternative energy.

This policy brief is based on Belfer Center paper #2010-02 and an article published in Energy Policy, Vol. 38, No. 3.

Oil security and the threat of climate disruption have focused attention on the transportation sector, which consumes 70% of the oil used in the United States.
This study explores several policy scenarios for reducing oil imports and greenhouse gas emissions from transportation.

China now faces the three hard truths of thirsting for more oil, relying heavily on coal, and ranking first in global carbon dioxide (CO2) emissions. Given these truths, two key questions must be addressed to develop a low-carbon economy: how to use coal in a carbon-constrained future? How to increase domestic oil supply to enhance energy security? Carbon Capture and Storage (CCS) may be a technological solution that can deal with today's energy and environmental needs while enabling China to move closer to a low-carbon energy future. This paper has been developed to propose a possible CCS roadmap for China.

Matthew Bunn and Martin B. Malin examine the conditions needed for nuclear energy to grow on a scale large enough for it to be a significant part of the world’s response to climate change. They consider the safety, security, nonproliferation, and waste management risks associated with such growth and recommend approaches to managing these risks. Bunn and Malin argue that although technological solutions may contribute to nuclear expansion in the coming decades, in the near term, creating the conditions for large-scale nuclear energy growth will require major international institutional innovation.

"Without energy, there is no economy. Without climate, there is no environment. Without economy and environment, there is no material well-being, no civil society, no personal or national security. The overriding problem associated with these realities, of course, is that the world has long been getting most of the energy its economies need from fossil fuels whose emissions are imperiling the climate that its environment needs."

This policy brief outlines urgent priorities for U.S. energy policy at the dawn of the Obama administration, and recommends specific steps that the U.S. government should take to address the numerous energy-related challenges facing the United States. It is based on the book, Acting in Time on Energy Policy (Brookings 2009), edited by Kelly Sims Gallagher, director of the Energy Technology Innovation Policy research group at the Harvard Kennedy School's Belfer Center.

We concentrate on six topics: climate change policy, carbon capture and storage policy, oil security policy, energy-technology innovation policy, electricity market structure, and infrastructure policy. The United States cannot afford to wait any longer to enact long-term policies on these topics. In fact, acting early is clearly in the longer-term interest of the United States.

"Acting on Time on Energy" conference, held at Harvard on 18–19 September 2008, brought together business leaders, investors, academics and government officials, to discuss energy pollcy for the next U.S. Administration. Click here for photos.