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Making local sense of food, urban growth, population and energy

More than half of continental USA hit by drought

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The national drought summary for the USA at the beginning of July 2012 shows how relentless the advance of the great dry has been in the country. Drought conditions are present in 56% of the continental USA, according to the weekly Drought Monitor. That’s the most in the 12 years that the data have been compiled – it was 55% in August 2003.

The Drought Monitor report said arid conditions intensified in large sections of the country, with only southern Texas reporting some improvement. “Light precipitation (0.5 inch or less) fell on most areas of dryness and drought, with only scattered areas reporting more than an inch, primarily in the northern Plains, lower Mississippi Valley, southernmost Great Lakes region, Appalachians, mid-Atlantic region, and southern Texas,” said the summary. “Unfortunately, where rain did fall (outside southern Texas), it was not enough to make up for blistering heat that covered the Nation’s midsection, reaching the central and southern Atlantic Coast by the end of the workweek.”

Both the number of record highs in the past week, (See ‘Climate change truth wallops USA hard’) and the areas with record and near-record dryness over the last one to three months are numerous. The increasing dryness is beginning to take a significant toll on crops, pastures, and rangelands. In the primary growing states for corn and soybeans (18 each), 22% of the crop is in poor or very poor condition, as are 43% of the pastures and rangelands and 24% of the sorghum crop. In addition, the area burnt by wildfires expanded significantly. Over 1.9 million acres have been engulfed since the start of the year, and an increase of 38% in just the past week. [The Drought Monitor pdf map is available here.]

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