Contra Drudge, Bradford Plumer explains why the recent cold snap in North America doesn't disprove global warming:
Even though the 2000s were the hottest decade on record, there were a lot of record lows set in the United States during that time. It's just that there were even more record highsand the ratio of highs to lows was greater than the ratio during the 1990s, which was, in turn, greater than the ratio during the 1980s, and so on. Note also that the United States is just a small patch of the globe, and while we're bracing ourselves against freakish cold, the central Pacific has been seeing freakish highs. The thing to watch is the overall trend.
Chart from UCAR.