The earth is, has been and will continue to go through cycles of climate change. There always has been pollution from volcanos, fires, etc. and always will be. The earth has cleansed itself in the past and will continue to, but that thought process doesn't make tax revenue, and that's what it's all about. It's about $$$$$$$$ When "Global Warming" didn't fit, they changed it to "Climate Change", that covers everything, if you have a heat wave, or cold, can't go wrong with that. Ahhh, gotta love it when a plan comes together.