[NotSammyHagar]

It's somewhat useful to know how much we did in the us but you can't go back in time and change what the us did from 1900-2000. I don't get the point. We can all only change what we emit now and into the future.

[jaakl]

It would be fair if the ones who did all the pollution (and also got the benefits from it) would clean the mess up now.