All this was over a small Y2K correction that lowered a few years of data for the U.S. by about a tenth of a degree. And what about the correction for global warming? Well, it's in the chart above.
Can't see it? That's not surprising. James Hansen of NASA, who applied the corrections to both the U.S. and global data, writes:
The effect on global temperature (Figure 2) was of order one-thousandth of a degree, so the corrected and uncorrected curves are indistinguishable.More here. Bottom line: there's no there there. Global warming is still real, still climbing, and still not a hoax. Tell your friends.