The science is settled, in the sense that the vast majority of people working in the field think this is probably what's happening. I think people who object to "settled" want it to mean "absolute certainty" but that's just a quibble over wording.
Deniers are morons. That's not the same as saying that there's no room for debate. There's always room for debate. But it's also a fact that the loud public face of the deniers is a bunch of politically motivated faith-based science illiterates peddling terrible rationalizations. Now, the fact that one side is full of idiots doesn't make the other side correct. But neither does the lack of complete definitive proof for one side mean that the other side isn't full of idiots.
And I've never seen anyone say that the Earth will be hell in 100 years. I have seen a lot of deniers say that this is said, in order to discredit climate change. What's actually said is that there will be a lot of disruption and chaos from changes, but of course there will always be lots of nice places to live, climate-wise. They just may not be where they are today.
Deniers are morons. That's not the same as saying that there's no room for debate. There's always room for debate. But it's also a fact that the loud public face of the deniers is a bunch of politically motivated faith-based science illiterates peddling terrible rationalizations. Now, the fact that one side is full of idiots doesn't make the other side correct. But neither does the lack of complete definitive proof for one side mean that the other side isn't full of idiots.
And I've never seen anyone say that the Earth will be hell in 100 years. I have seen a lot of deniers say that this is said, in order to discredit climate change. What's actually said is that there will be a lot of disruption and chaos from changes, but of course there will always be lots of nice places to live, climate-wise. They just may not be where they are today.