By Roddy Scheer and Doug Moss, E - The Environmental Magazine
June 17, 2013 (San Diego) -- Dear EarthTalk: Could it really be true that we are in the midst of the worst drought in the United States since the 1930s? -- Deborah Lynn, Needham, MA
Indeed we are embroiled in what many consider the worst drought in the U.S. since the “Dust Bowl” days of the 1930s that rendered some 50 million acres of farmland barely usable. Back then, drought conditions combined with poor soil management practices to force some 2.5 million Americans away from the Great Plains, only wreaking further havoc on an already devastated Great Depression economy. The lack of native prairie grasses or cover crops to keep the soil in place meant large swaths of formerly productive agricultural land turned to dust and blew away in so-called “black rollers.”
While we have learned a lot about maintaining soil quality since, drought conditions today are nevertheless taking a heavy toll on agricultural productivity, fresh water supplies and the economy—especially as the effects of global warming start to kick in more seriously.