Believe black holes but not global warming?

How is it that someone can accept black holes, which are held only by the faintest strands of evidence above pure conjecture, but not human caused global warming?

I don't see what the big deal is, even if global warming isn't happening the only thing we want to happen is a reduction in pollution - what kind of moron would be against solving global warming if it means that we stop spewing carcinogens in the air?  Oh, that's right, oil companies and big industry.