I keep running into people who claim they've never seen any "proof" of a correlation between CO2 and temperature.
I don't know if this is "proof", but it sure is strong circumstantial evidence:
Welcome to By 2100!
This Blog is designed to be a Diary of Events illustrating Global Climate Change, and where it will lead.
Commentary is encouraged, but this Blog is not intended for discussion on the Validity of Climate Change.