Look, in the best case, we misinterpreted the data, and global warming has nothing to do with human interaction with the environment. Is it really going to kill us if we lower our emissions anyways? I really don't see this putting the US at a disadvantage globally. We already enjoy so much that others do not. And what if we were right about global warming afterall? That's a big risk to just dismiss.
To simply write off the human component to the present-day warming trend and to spread this stuff around is irresponsible, at best. The science is there, the CO2 to warming relationship is undeniable, and anyone who takes the time to look at it objectively would agree. Since the Industrial Revolution, CO2 emissions have skyrocketed. Isn't it worth considering, that just maybe we might be responsible for this?