Clouds from hell

Hurricanes like Sandy and Katrina aren't the only weather-related disasters our country has faced within the lifetimes of people still alive.  It's easy to forget the Dust Bowl of the 1930's, a multi-year catastrophe that ruined farmers' lives and drove them and their families from their homes.

Like Sandy, the drought-related dust bowl was caused in part by mankind.  Throughout the 1920's, farm land in the affected area -- the panhandles of Oklahoma and Texas, parts of Colorado, Kansas and New Mexico -- had been offered for sale at low prices by land speculators.  Land that had existed as grass prairies for centures was ruthlessly plowed under, primarily to grow wheat at subsidized prices.  Favorable rainfall had created good crops, and had encouraged ambitious young families from other parts of the country to move to the Southwest.

The drought began in 1930, and reached its peak in 1934-36.  Enormous dust storms blew uprooted virgin soil across the area, forming clouds so dense that they turned day to night, and deposited soil on streets as far away as Chicago and Cleveland.  Families at first thought they could ride out the drought; they gradually, year by year, went bankrupt, losing everything they had, including hope for the futures of themselves and their children.  The ambient dust, breathed into the lungs, caused an epidemic of pneumonia, affecting especially the kids.

Ken Burns has produced a four-hour documentary of the history of the Dust Bowl, including extensive interviews with elderly survivors, folks who were children at the time.  Burns spoke Friday night at a packed Neptune Theater in Seattle, illustrating his talk with about 50 minutes of clips from his documentary, to a silent and stunned audience.  The surviving motion picture clips of approaching dust storms -- looking like distant mountain ranges moving inexorably closer -- are breathtaking.  The survivors' stories are heartbreaking. 

Many of the families migrated to California -- where they were reviled as hated "Okies."  Their treatment by the already depression-impoverished residents of the Central Valley is eye-opening.  "Niggers and Okies seated only in balcony," read signs outside movie theaters.  Steinbeck's The Grapes of Wrath and the songs of Woody Guthrie evolved from those artists' own familiarity with the migrants' hardships in California.

The documentary concludes with mention of a lesser drought in the late 1940's and 1950's.  Since then, more favorable weather, better planting techniques and -- most critically -- irrigation, have created a relative prosperity in the area.  But Mother Nature will have the last laugh.  Irrigation has been dependent on wells drawing water out of the Ogallala Aquifer, a reservoir of subterranean water left over from the melting of the last glaciers.  The aquifer has already lost 50 percent of its depth.  Scientists estimate it will last another twenty years.

One expert pointed out that future generations will curse us for having used the water they needed for drinking to grow water-thirsty wheat on soil suited only for plains of grass.

The documentary will be shown in two parts on PBS, November 18 and 19.