That the climate has always changed. It has never been static. In the past it has seen extremes hotter and colder than what we experience today. So c… - Anthony Watts

It's all about the sun. Just take a look at the picture above and notice just how small earth is compared to the sun, or even a large solar flare. Anybody whom thinks the human race has more effect on our global energy balance than an active sun does is just deluding themselves.

The global warming crowd is using all the surface data, including cities like L.A. to support their claim, and the data is flawed because it's influenced by human development. It's about asphalt, not the atmosphere.

I have to think that because NASA chose to co-author this paper [LaDochy et al., 2007] with researchers at California State University, that some of the statewide "global warming as man-made problem bias" crept into the thinking for the purpose of this paper, i.e. "we need another study to show that its getting hotter so action is justified".