...Whether it is caused by humans or not, it doesn't really seem to matter. Let's focus on making this place a nice place to live. Clean air, clean water, clean land. These are things no one is going to argue with. Let's start making this a better world for you and for me.
Seems like a no-brainer, no? But that's pretty much the topic here: no brainers.
Honestly, though, I see the failure of American thinking as far more of a problem than Global Warming. The latter can do a lot of damage to the environment to which we're used. But, aside from our own perspective, so what? A few cities get flooded? We might care, but the Earth won't.
On the other hand, we need clear and decent thinking - analysis, reason, etc. - to deal with this issue. And the next. And the next. Maybe Global Warming is the fault of humans this time. The next problem might not be. But that doesn't mean that we don't have to deal with it.
Dealing, though, is where we'll fail if we cannot apply science and engineering to design and implement rationally chosen solutions. And our schools are not churning out people trained in rational and critical thinking, much less scientists and engineers.
There's too much political advantage to be had in keeping people ignorant and backward, I fear, for schools to ever receive the long-term correction that is likely required.