This new paper by Anthony Watts seems like it could be a game changer. The key bit from the press release:
The new analysis demonstrates that reported 1979-2008 U.S. temperature trends are spuriously doubled, with 92% of that over-estimation resulting from erroneous NOAA adjustments of well-sited stations upward.
The paper has not yet been peer reviewed, so it’s possible there are problems. But if the paper holds, then this paper basically says that the data used to calculate global warming sucks so much that we can’t reliably predict “climate change” with it.
It will be interesting to see what kind of press attention this paper receives. Especially from these sorts of folks. Might give us a chance to see just how serious they are about science.