I first read about climate change in the late 80s. The New American magazine had an article laying out the hoax the globalists were getting ready to pull on the world. "Man-made" climate change. They went so far as to mention there would be exchanges setup, where the globalists would make billions if not trillions through their user fees. It also explained how CO2 is not pollution. That cows and termites create much more CO2 than man. (They emit huge volumes of methane which breaks down to CO2).
Red flags about the "man-made" climate change hoax:

• Mars experiences roughly the same climate change as Earth. There are no men on Mars. Perhaps, the culprit is the sun!
• Some studies show the earth is actually deficient in CO2. Plants consume CO2 and create oxygen. If CO2 levels were higher, plants would thrive and there would be more oxygen.
• The islands Al Gore said were under water with citizens having to be evacuated in his fake news film An Inconvenient Truth, inconveniently have never been under water and the citizens have never been evacuated. The island is a thriving community still today. Al Gore simply told a flat out lie!
• There are more polar bears today than ever. Don't believe the #FakeNews excuses that they didn't use to know how to count polar bears. It's just propaganda.
• The list is long, but there is ample evidence that global warming is nothing but a hoax to milk the world of money.