evidence: The claim: Human-caused climate change is a hoax [...] One Facebook user posted on April 19 claiming, among other things, that "man-made climate change (is a) scam." [...] The claim that human-caused climate change is a hoax is FALSE, based on our research. The scientific consensus is that climate change is a product of human-produced gases that trap heat on Earth. Both government organizations and papers in scientific journals have concluded with a high degree of certainty that climate change is human-made.