The most recent study on climate change by the U.S. National Academy of Sciences concluded that, “Climate change is occurring, is caused largely by human activities, and poses significant risks for—and in many cases is already affecting—a broad range of human and natural systems. (See Climate Change 101: Science and Impacts.) The combustion of fossil fuels has contributed to the expansion of the global economy since the start of the Industrial Revolution. It has also substantially increased the concentration of carbon dioxide, the primary greenhouse gas in the atmosphere. The cumulative impact of these emissions poses significant economic risks. Policies to reduce emissions are required if we are to avoid the most costly damages of a rapidly changing climate. This brief describes how market-based policies can achieve climate goals more cheaply and efficiently than alternative policy structures—all while driving innovation to develop more cost effective, clean energy solutions that will serve as the foundation for strong economic growth throughout the 21st century.
Click here to read the full brief on market mechanisms.