This guy is also a fucking nimwit.
The whole tree line thing is silly, he measured in one area and didn't do any alterations for non-linear difference, weather, temp, elevation etc.
Fuck is this all they have. They even claim in the article that the earth has warmed since 1998, smack my fucking face.
2005 was warmer then 1998, fact. So this man is a moron. Now, he also uses a shitty method not accepted by everyone to measure themperature, and avoids the ocean data like the plauge which of course, further contradicts this "study". Also, the treanding is more important that single points of temperature, the trend? warming. Predicions indicate it will continue to do so.