TV weatherman John Coleman wrote that global warming “is the greatest scam in history. I am amazed, appalled and highly offended by it. Global Warming: It is a SCAM.” Twenty-nine percent of 121 meteorologists agreed – not that global warming was unproven, or unlikely, but that it was a scam.  Just 24 percent of them believed that humans were responsible for most of the change in climate over the past half century [and] half were sure this wasn’t true.