This document summarizes strategies used to undermine public acceptance of climate change science and discusses ways to more effectively engage the public on this issue. It notes that corporate interests have funded front groups and think tanks to manufacture doubt about climate science and make lack of certainty a political issue. As a result, news media often portray climate science as a two-sided controversy when there is actually a scientific consensus. It suggests joining online networks for information and action, developing new communication strategies, and promoting a values-based debate around climate solutions rather than perpetuating manufactured controversies.