NASA Study Finds 1934 Had Worst Drought of Last Thousand Years

Watts Up With That?

A new study using a reconstruction of North American drought history over the last 1,000 years found that the drought of 1934 was the driest and most widespread of the last millennium.

Using a tree-ring-based drought record from the years 1000 to 2005 and modern records, scientists from NASA and Lamont-Doherty Earth Observatory found the 1934 drought was 30 percent more severe than the runner-up drought (in 1580) and extended across 71.6 percent of western North America. For comparison, the average extent of the 2012 drought was 59.7 percent.

farmer and sons during a dust storm in Cimarron County, Oklahoma, 1936 This photo shows a farmer and his two sons during a dust storm in Cimarron County, Oklahoma, 1936. The 1930s Dust Bowl drought had four drought events with no time to recover in between: 1930-31, 1934, 1936 and 1939-40.Image Credit: Arthur Rothstein, Farm Security Administration

“It was the worst by a large margin, falling pretty far outside the normal range of…

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