Cristy has been criticized for over a decade now for his nonsensical cherrypicking.

http://www.realclimate.org/index.php/archives/2005/08/et-tu-lt/ Is a good place to start.

It took me some time to start finding stuff that isn't overtly political. It can be hard.

So basically Cristy cherry-picked data and has continued doing so. He still is the one invited to US government proceedings by Republicans who like his message. It must be fun for him?  No surprise here.

Facts will never get in the way ...

-- edit

See what I did here. You guys presented a chart. It didn't agree with the stuff I had seen so I looked further into it. It took me a bit to find the source, but it wasn't too hard. After reading a few things that were political I finally found stuff that seems legitimate. Christy cherrypicks and has done so for some time. His data set is questionable and he refuses to correct it. In fact, it is cited often by those who wish to deny man made global warming.

There is no surprise that a guy like this exists...  heck he even gets to go straight to the Senate to give a talk. Must be exciting for him.

Wonder why he isn't part of some larger non-political study ?  Hmmm.. I wonder