Gee when you stop to worry you sure can make a list..... and most of what we have done to this planet has been in probably less than 200 years which is a painfully short period of time in our history and ever a shorter period in the history of life...
It is a big world but can it accomodate our approach???... and the sad thing is we can not do anything about our approaches ..
Global warming if it is hastened by us simply can not be stopped by somehow humans over a decade or two changing their basic self centered ways...under pain of death nothing will change ... every one contributes even those determined not to ...
If there is a God he is sure going to be ticked off when he comes back and sees what we have done to his plants, animals and water.... but I feel the future we head for will be worse than one could ever comptemplate that a unhappy creator would deal out in his anger over our folly.. beauty will die in nature and then in us... beauty is becoming a rare thing where once it was the norm.
What can you do

???
I am wringing my hands but I dont think that is going to help.
alex

