Some time yesterday a MASSIVE file was leaked to the internet, supposedly full of emails from the hadley climate center.  The emails are very damning.  At least some of the data has been verified as authentic.  You can see more info on this WattsUpWithThat.com article.  If you want some other sources you can find them at many of the skeptic sites listed on the bar on the right side of the website.  I downloaded the actual file and uploaded a combined version of all the email texts (for the time being anyway) if you wanted to look at them yourself.