evidence: Fighting The Global Warming Scam [...] Translate "Man-caused global warming is the biggest scam perpetrated against society since time began," says Jay Lehr, science director for the Heartland Institute. "The whole concept behind climate change is fear and control." [...] "The whole scam is based on mathematical models," Lehr explains. He adds none of those models anticipated nor accounted for the global cooling in 2007 that basically erased the 100 years of global warming preceding it.