I'm not sure the "remarkable Arctic warmth" is real, especially since the disappearance of arctic sea ice during that time has been linked not to war… - Anthony Watts

Our earth is warmed by a gigantic nuclear fireball, millions of times the mass of earth and a mere 8.5 light-minutes away. One hundred and nine Earths would be required to fit across the Sun's disk, and its interior could hold over 1.3 million Earths. ... You can't just ignore that kind of power. Though it seems some prefer to, since it muddles the results they seek.

Of course we all know that the human race has historically done better during warm periods. While we've seen a slight warming in the last century, we've also seen a worldwide improvement in the human condition. Warm – what's not to like?

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".