Enhanced energy efficiency occupies a central role in evaluating the efficacy and cost of climate change policies. Ultimately, total greenhouse gas (GHG) emissions are the product of population, economic activity per capita, energy use per unit of economic activity, and the carbon intensity of...

As the Copenhagen Accord indicates, most of the international community agrees that global mean temperature should not be allowed to rise more than two degrees Celsius above preindustrial levels to avoid unacceptable damages from climate change. The scientific evidence distilled in the Fourth...

Global governance institutions for climate change, such as those established by the United Nations Framework Convention on Climate Change and the Kyoto Protocol, have so far failed to make a significant impact on greenhouse gas emissions. Following the lead of Elinor Ostrom, this paper offers an...

Biomass, a renewable energy source, has been viewed as "carbon neutral" - that is, its use as energy is presumed not to release net carbon dioxide. However, this assumption of carbon neutrality has recently been challenged. In 2010 two letters were sent to the Congress by eminent scientists...

The paper examines future energy and emissions scenarios in China, presenting historical data and scenarios generated using the Integrated Assessment Model WITCH. A Business-as-Usual scenario is compared with four scenarios in which Greenhouse Gases emissions are taxed, at different levels. Key...

Regulatory uncertainty has been inherent to climate change in the absence of a successor to the Kyoto Protocol and with ongoing policy discussions on how to proceed. To facilitate steps to help address the issue, many companies have called for more certainty and a stable policy framework. What...

Climate change is seen as the most pressing environmental problem of our time by many companies, policymakers and other stakeholders. It is currently also at the forefront of attention in view of attempts to conclude a successor to the Kyoto Protocol that expires in 2012. In bail-out plans and...

This paper examines the interrelationship of learning effects and emission control on the diffusion of carbon capture and storage (CCS). We introduce a dynamic model in which an electricity producer maximizes profits subject to emissions control. All technologies are characterized by specific...