In 2008, using nationally representative survey data on global warming beliefs, behaviors and policy preferences in the United States, we identified six distinct groups of Americans – “Global Warming’s Six Americas.” Since then, we have tracked the size of these six audiences – and the ongoing evolution of their beliefs, behaviors and policy preferences – through a series of national surveys. We observed a sharp decline in public engagement from the fall of 2008 to January 2010, and a gradual rebound starting in June 2010. This slide deck presents the latest findings on the size of each group as of March 2015 with salient characteristics of each.