The Climate Change 101 series provides a reliable and understandable introduction to global climate change, giving policy makers the basic information they need as they face decisions about climate policy. The new 2011 edition incorporates the most recent information on climate change and major developments in the climate field since the last update in 2009. The series begins with an overview report which serves as a summary and introduction to the series and consists of eight briefs covering climate science and impacts, adaptation, technological solutions, business solutions, international action, U.S. federal-level action, action in the U.S. states, and efforts by local governments.