Okay...coming in this thread, I feared the worst. But apparently, only 4.4% of tempers really still believe all is okay.
Personally, the first time I heard about climate change was somewhere in the second half of the nineties. This was just before internet became mainstream (in my life). It may have been youth sentiment, but I think science was done on a more thorough level at that time. These were reports that were made without an agenda or affiliations. It was only later that I've heard that they apparently caused controversy in the only parts where they were needed: in governments. Lobbyists didn't bother to spread propaganda or hire scientists to prove the global scale different because all they really had to do was keep journalists from it.
Anyway...as you can imagine, I saw the world take a pretty sharp turn when Gore (who was an environmentalist even before he made "an inconvenient truth") lost to some guy who abused a terrorist attack to attack a nation that had nothing to do with it. But that documentary marked a turning point: all of a sudden I wasn't alone in "this theory" of global warming, but was "a believer" for something I already knew for years. However, because quite some powerful companies (mostly car and oil ones) would become (near-)unafordably if you have to pay the FULL price for traveling by car*, they used lobbyists to spread propaganda and lies. This whole "okay, global warming is real but it's not caused by us" is one of these arguments. It's just a way to discredit the basic statistics that actually prove very well that the human-caused climate change started with the industrial revolution.
Of course I hate Trump as much as everyone else**, but still this act is pretty weird and stupid even by his track record. After all, he is a businessman. And this whole "it's about jobs!" just doesn't make sense, because it's not jobs vs clean energy. You can have both. In fact, I would think that investing in clean energy creates much more jobs than the "more of the same" that the US currently has. Solar panels and wind turbines don't create themselves. To engineer them, to build them and to maintain them undoubtedly requires at least as much jobs as keeping with the current (meaning: coal). It's not like the US is forced to import these technologies either: from an article I read, you already have quite a booming business in clean power (Texas...Hawaii...and from all the places even Pittsburg***). Those businesses could've expanded to other countries, which would've been good for your economy. Now, however, they'll have to compete with the old and polluting ways.
*meaning: somehow make sure that the pollution it makes is truly compensated for
**okay, perhaps save a small percentage of US voters who actually voted "for him" rather than "against Clinton"
***the mayor of that joint didn't like Trump citing them as "whom he worked for"...the majority voted for Hillary...and they've done a lot to move away from pollution