(CNN) — President Donald Trump escalated his denial of global warming Tuesday, when he took to Twitter to quote a noted climate skeptic who claims that climate change is "fake science."
Trump cited the comments of Patrick Moore on Fox News' "Fox & Friends" program, which identified him as the co-founder of the activist group Greenpeace.
According to Greenpeace, however, Moore is not a co-founder but rather "a paid spokesman for a variety of polluting industries for more than 30 years."
Moore, who is not a climate scientist but who has degrees in forest biology and ecology, played a significant role in Greenpeace Canada for several years early in the organization's existence, according to Greenpeace's website, but he did not help found it.
"He also exploits long-gone ties with Greenpeace to sell himself as a speaker and pro-corporate spokesperson, usually taking positions that Greenpeace opposes," the group said in a statement in 2010.