A provocative work that urges governments and policymakers to concentrate on existing policies and tools for combating climate change.This provocative book argues that economists typically ask the wrong sorts of questions about climate change because they do not take into account the policies that have already been implemented. It shows how we can use such policies to develop carbon markets that could dramatically reduce world greenhouse gas emissions.This provocative book argues that economists typically ask the wrong sorts of questions about climate change because they do not take into account the policies that have already been implemented. It shows how we can use such policies to develop carbon markets that could dramatically reduce world greenhouse gas emissions.Since the publication of the Stern Review, economists have started to ask more normative questions about climate change. Should we act now or tomorrow? What is the best theoretical carbon price to reach long-term abatement targets? How do we discount the long-term costs and benefits of climate change? This provocative book argues that these are the wrong sorts of questions to ask because they don't take into account the policies that have already been implemented. Instead, it urges us to concentrate on existing policies and tools by showing how the development of carbon markets could dramatically reduce world greenhouse gas (GHG) emissions, triggering policies to build a new low-carbon energy system while restructuring the way agriculture interacts with forests. This provides an innovative new perspective on how a post-Kyoto international climate regime could emerge from agreements between the main GHG emitters capping their emissions and building an international carbon market.Introduction: the opera house of Manaus; 1. Climate risk; 2. Some like it hot (climate change adaptation); 3. Building a low-carbon energy future; 4. Pricing carbon: the economics of cap-and-trade; 5. Agricultural intensificationls