The U.S. federal government has established a series of voluntary and incentive-based policies that seek to slow the growth of emissions, encourage the development of climate change-related science and technology, and enhance international cooperation.
Congress introduced over 100 bills, resolutions, and amendments addressing climate change during the past three years. However, very few of these have become law. Two pieces of legislation that have been ratified into law, the Energy Policy Act of 2005 and the Energy Independence and Security Act of 2007, currently guide our national energy policy. Other programs are being promoted through public-private partnerships, and two of them, the Chicago Climate Exchange and the U.S. Climate Action Partnership, have been initiated by the business sector.