As anyone with a brain knows (This leaves out rocky mtn bill, a gun owner who supports anti-gun Democrats) climate has always been changing for as long as the Earth has had an atmosphere.
The only science that has been settled is that which has been spoon fed as propaganda to Libtards and fools like Billy. He won't even look at any of the following, because he is a brainless sock-puppet.

We are probably closer to a cold period than runaway global warming. Global cooling has always been rougher on humanity than warm periods.
Just two years ago, we had a colder than normal winter, and a wetter than normal spring and summer. The precipitation records in much of the East were broken, when the alarmists have been predicting another Dust Bowl era.
http://www.hiltonratcliffe.com/the-myths-of-man-made-climate-change/http://www.climatedepot.com/2010/12/08/s...un-ipcc-gore-2/https://www.amherst.edu/media/view/400467/original/2010_Senate_Minority_Report.pdfIf we go by prehistoric CO2 levels, at our current CO2 level, the ocean sea levels should be over 100 feet higher than they are right now. But they aren't, are they? And humans didn't even exist at that time either, so who do we blame for that? If dinosaurs had only driven Prius's, they might still be here.
And if you can make it all the way to the end of this article (don't even try rocky mtn bill), it will be seen that the correlation between CO2 levels and temperatures over the last 400,000 years being used to support the Global Warming propaganda from the Liberal Left is cherry-picking data at its' finest:
http://www.pnas.org/content/99/7/4167But Liberals and the Fake News have largely been successful in suppressing the 2009 Climate-gate scandal. They just stopped talking about Global Warming until the controversy died down, but they knew they could come right back and continue the B.S.
https://www.telegraph.co.uk/comment/colu...generation.html