The Communism deniers; like the Climate Change deniers, succeeded because the reality they were trying to whitewash was too unsettling. No 20th Century intellectual wanted to admit that his ideas were inspiring atrocities. Few modern Americans want to admit their lifestyles are harming the planet. Given this history Climate Change Denial is likely to generate a greater and more destructive witch hunt than Communism Denial. The Climate Change McCarthy will remind voters that Republicans, big business, the conservative media, and promoted Climate Change denial. Leftist intellectuals seeking payback for decades of conservative abuse are likely to lead the witch hunt. All it will take to launch that witch hunt are a few more climate-linked catastrophes; such as the California fires, and a McCarthy type demagogue (any politician that needs to distract voters from a scandal) with a Twitter account.