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 influe… - Anthony Watts

CO2 is far from being the biggest greenhouse gas. Chloroflourocarbons (CFC's) commonly used as refrigerants [are] far worse. Of naturally created GHG's, Methane is 23 times more effective at warming the atmosphere than CO2. Nitrous Oxide is even worse at 296. So far no emergency legislation has been authored to eliminate the effect of cows or dental surgeons.

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 warmer temperatures, but to wind patterns by other researchers at NASA.

So we have three planets now with a warming trend; Earth, Mars, and Neptune. That's not an insignificant coincidence.