23 Feb 2010, 4:13pm
Latest Climate News
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The myth of global warming blizzards

by James M. Taylor, Heartland Institute, ClimateChangeFraud.com, 23 February 2010 [here]

Faced with the embarrassment of record snowstorms this winter, global warming apologists are now telling us such blizzards prove the existence of global warming.

Global warming computer models, we are told, predict a higher frequency of extreme weather events, such as heat waves, drought, floods, violent storms, and, yes, blizzards. The problem with this theory is that there is no such increase in extreme weather events in the real world.

High temperature extremes are not becoming more frequent. …

Flooding events likewise show no sign of increase. …

A study of stream flows and flooding events published in the April 2009 peer-reviewed Journal of the American Water Resources Association confirms this. “There is broad evidence … for increased magnitudes of low and moderate flows both regionally and nationally,” while “trends in high flows have been much less evident,” the study concluded.

Nor is drought becoming a problem. …

The oft-repeated claim that violent storms are becoming more numerous is also demonstrably false. …

The hurricane record is similar. National Weather Service records show hurricanes struck the United States far more frequently in the late 1800s through the 1950s than has been the case since the 1960s. In fact, global hurricane frequency during the past two years was lower than at any time since at least the 1970s.

Which brings us back to blizzards. Global warming apologists are claiming this year’s frequent blizzards and record snow amounts are evidence of global warming because warmer temperatures allow the air to hold more moisture, which in turn leads to heavier snow events. The problem with this theory is that North America has experienced one of its coldest winters in decades. It is certainly not warmer air this year that is causing more blizzards.

Moreover, prior winter snow records, such as Washington DC’s prior record snowfall in 1899, were set during unusually cold winters, not unusually warm ones. The winter of 1899 was one of the coldest U.S. winters on record, especially during February when most of the record blizzards occurred.

Global warming apologists seek to blame anything and everything on global warming, but the assertion that global warming is causing more blizzards and extreme weather events simply does not stand up under objective analysis. … [more]



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