[EdSharkey]

Thanks for replying so many days after this thread started, seems like you care enough to say something. It's gratifying.

I can't tell if you are equating "pollution is bad" with "earth will become uninhabitable". Are you?

I agree 100% that pollution is terrible, and we should curtail it where we can without slowing down our technological advancement as a species too much. That's simply the responsible thing to do, and anyone that disagrees should visit China's big cities and take a deep breath or go swimming in some algae plume ocean water.

But, the mental leap to "imminent planet death" caused by us at our current technology level is too far a leap for me to take. The world and its systems are just too huge and humanity is too insignificant and primitive.

I contend the system is complex and we don't have adequate models to simulate it. And, the system is robust and can adjust to and absorb much larger disruptions than mankind can currently create.