Yet more scaremongering from the statistically-incompetent Jim Hansen. Regarding the heat wave in Russia, the National Oceanic and Atmospheric Administration issued a press release entitled "Natural Variability Main Culprit of Deadly Russian Heat Wave That Killed Thousands
"; the press release is based on a paper that was published in Geophysical Research Letters
. Another paper
, published in the same journal, concluded that "the heat wave falls within the realm of natural variability
... [and] appears not to be the product of long-term climate changes". Also, some researchers in Germany analyzed the data and published a paper, entitled "Large scale flow and the long-lasting blocking high over Russia
", which says that the heat wave "appears as a result of natural atmospheric variability".
In short, the claim about Russia is false. The claim about the European summer of 2003 is also debunked. (I am not familiar with Texas.) And why does Hansen not mention extreme cold recently in Alaska?—is that also due to global warming? Bad weather has always existed.