i agree with a lot of what has been said on here. my biggest issue is when people try and claim that 'global warming' is only our fault and that is why animals like polar bears are going extinct. there is no completely solid evidence to say that global warming is our fault (and some that claims the opposite), but i digress. if its not our fault, and the climate is still changing, doesn't that just mean that a nich predator is slowly and naturally being phased out of existence like the other 95% of all life that has even lived on earth? as tragic as it is, thats just the way things work.
that all being said, if it is our fault due to any of the reasons other people mentioned, i would never forgive our my generation if we didn't do all we could to limit the harm to our environment.