The 1930's Western Dust Bowl Horror May Be Back To Stay
By James Donahue
The drought that has gripped the Western United States for the last
nine years now threatens to bring back images of the Dust Bowl days of the 1930's, a U. S. Geological Survey report says.
The report states that the current dry spell is the worst
on record, and a study of tree rings suggests it hasn't been this arid for at least 500 years. And the bad news is that the
problem may persist for several decades.
`"We've seen from tree-ring records that the area has
had some droughts 50 years in length,'' said Greg McCabe, one of the study's co-authors. "We haven't had anything like that
in a long, long time, and there is always a concern that we could be heading into one of those.''
The report also notes that the flow of water in the mighty
Colorado River, that ranchers from Utah, Colorado, Arizona and Nevada and south into Mexico rely on, has dropped to a critical level. The annual flow from 1995 through
2004 is averaging 9.9 million acre-feet. The lowest prior record was in a period from 1584 to 1595 when the flow was estimated
at 9.7 million acre-feet.
From 2001 to 2003 the average flow on the Colorado
dropped to an incredible 5.4 million acre-feet measured at Lees Ferry, Arizona,
the report said. By comparison, during the Dust Bowl years, the annual flow averaged about 10.2 million acre-feet.
The report notes that droughts have had a record of lasting
no more than a decade, or 10 years, which means the current drought is only half over. That means ranchers and towns throughout
the western states won't see relief on the current water crisis for a few more years. And those prairie and forest fires will
continue to keep fire fighters busy.
There is a little problem in all of this. The report apparently
ignores the impact of global warming on the environment.
Warm water temperatures in the Atlantic Ocean tend to
correspond with droughts in the U.S.,
said McCabe. He said the Atlantic is warm now, similar to how it was during the Dust Bowl
drought of the early 1930s.
The Pacific Ocean also
is warming, which also has an El-Nino effect on the world's weather.
Scientists warn that a layer of smog and other particles
collecting in the atmosphere surrounding the Earth is blocking sunlight and may be causing less evaporation of water from
lakes and oceans. This in turn is reducing global rainfall. Statistics show that desert regions are growing all over the world.
Large areas of China and Africa are turning into desert, as is much of
Australia. Could this be a permanent problem
for the Western United States?
The Dust Bowl drought of the 1930s lasted only about a
decade, from 1930 to 1937 and affected southern plains states like Oklahoma and Kansas the hardest. The drought was marked by large dust storms and
forced farmers to flee their barren fields. Author John Steinbeck best depicted their plight in his historic novel Grapes