Do people think credibility challenges exist? They do. This chapter presents evidence from interviews and surveys that show how credibility challenges are present in the minds of the national public, local policymakers, and residents of fossil fuel communities. Our surveys include nationally representative samples of the United States, local elected officials, and county fairgoers in Appalachia. People are concerned that the government will fail to follow through on commitments. Furthermore, companies and investors share these concerns, which can lead to underinvestment in clean energy.