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  • From: "TradingPostPaul" <tradingpost@riseup.net>
  • To: livingontheland@lists.ibiblio.org
  • Subject: [Livingontheland] The wrath of 2007: America's great drought
  • Date: Tue, 26 Jun 2007 21:29:22 -0600


http://news.independent.co.uk/world/americas/article2643033.ece
The wrath of 2007: America's great drought
Independent.co.uk (June 11 2007)
by Andrew Gumbel in Los Angeles

America is facing its worst summer drought since the Dust Bowl years of the

Great Depression. Or perhaps worse still.

>From the mountains and desert of the West, now into an eighth consecutive
dry year, to the wheat farms of Alabama, where crops are failing because of

rainfall levels twelve inches lower than usual, to the vast soupy expanse
of
Lake Okeechobee in southern Florida, which has become so dry it actually
caught fire a couple of weeks ago, a continent is crying out for water.

In the south-east, usually a lush, humid region, it is the driest few
months
since records began in 1895. California and Nevada, where burgeoning
population centres co-exist with an often harsh, barren landscape, have
seen
less rain over the past year than at any time since 1924. The Sierra Nevada

range, which straddles the two states, received only 27 per cent of its
usual snowfall in winter, with immediate knock-on effects on water supplies

for the populations of Las Vegas and Los Angeles.

The human impact, for the moment, has been limited, certainly nothing
compared to the great westward migration of Okies in the 1930 - the
desperate march described by John Steinbeck in The Grapes of Wrath.

Big farmers are now well protected by government subsidies and emergency
funds, and small farmers, some of whom are indeed struggling, have been
slowly moving off the land for decades anyway. The most common
inconvenience, for the moment, are restrictions on hosepipes and garden
sprinklers in eastern cities.

But the long-term implications are escaping nobody. Climatologists see a
growing volatility in the south-east's weather - today's drought coming
close on the heels of devastating hurricanes two to three years ago. In the

West, meanwhile, a growing body of scientific evidence suggests a movement
towards a state of perpetual drought by the middle of this century. "The
1930s drought lasted less than a decade. This is something that could
remain
for 100 years", said Richard Seager a climatologist at Columbia University
and lead researcher of a report published recently by the government's
National Oceanic and Atmospheric Administration (NOAA).

While some of this year's dry weather is cyclical - California actually had

an unusually wet year last year, so many of the state's farmers still have
plenty of water for their crops - some of it portends more permanent
changes. In Arizona, the tall mountains in the southern Sonoran desert
known
as "sky islands" because they have been welcome refuges from the desert
heat
for millennia, have already shown unmistakable signs of change.

Predatory insects have started ravaging trees already weakened by record
temperatures and fires over the past few years. Animal species such as
frogs
and red squirrels have been forced to move ever higher up the mountains in
search of cooler temperatures, and are in danger of dying out altogether.
Mount Lemmon, which rises above the city of Tucson, boasts the southernmost

ski resort in the US, but has barely attracted any snow these past few
years.

"A lot of people think climate change and the ecological repercussions are
fifty years away", Thomas Swetnam, an environmental scientist at the
University of Arizona in Tucson, told The New York Times a few months ago.
"But it's happening now in the West. The data is telling us that we are in
the middle of one of the first big indicators of climate change impacts in
the continental United States." Across the West, farmers and city water
consumers are locked in a perennial battle over water rights - one that the

cities are slowly winning. Down the line, though, there are serious
questions about how to keep showers and lawn sprinklers going in the
retirement communities of Nevada and Arizona. Lake Powell, the reservoir on

the upper Colorado River that helps provide water across a vast expanse of
the West, has been less than half full for years, with little prospect of
filling up in the foreseeable future.

According to the NOAA's recent report, the West can expect ten to twenty
per
cent less rainfall by mid-century, which will increase air pollution in the

cities, kill off trees and water-retaining giant cactus plants and shrink
the available water supply by as much as 25 per cent.

In the south-east, the crisis is immediate - and may be alleviated at any
moment by the arrival of the tropical storm season. In Georgia, where the
driest spring on record followed closely on the heels of a devastating
frost, farmers are afraid they might lose anywhere from half to two-thirds
of crops such as melons and the state's celebrated peaches. Many cities are

restricting lawn sprinklers to one hour per day - and some places one hour
only every other day.

The most striking effect of the dry weather has been to expose large parts
of the bed of Lake Okeechobee, the vast circular expanse of water east of
Palm Beach, Florida, which acts as a back-up water supply for five million
Floridians. Archaeologists have had a field day - dredging the soil for
human bone fragments, tools, bits of pottery and ceremonial jewellery
thought to have belonged to the natives who lived near the lake before the
Spanish arrived in the 16th century.

Environmentalists are not entirely upset, because the lake is notoriously
polluted with pesticides and other farm products that then poison nearby
rivers. River fish stocks in the area are now booming.

Nothing, though, was so strange as the fires that broke out over about
12,000 acres on the northern edge of the lake at the end of May. They were
eventually doused by Tropical Storm Barry last weekend. State water
managers, however, say it will may take a whole summer of rainstorms, or
longer, to restore the lake.

The great Dust Bowl disaster

The Dust Bowl was the result of catastrophic dust storms causing major
ecological and agricultural damage to American prairies in the 1930s. The
fertile soil of the Great Plains had been exposed by removal of grass
during
ploughing over decades of ill-conceived farming techniques. The First World

War and immense profits had driven farmers to push the land well beyond its

natural limits.

When drought hit, the soil dried, became dust, and blew eastwards, mostly
in
large black clouds. This caused an exodus from Texas, Arkansas, Oklahoma,
and the surrounding Great Plains, with more than half a million Americans
left homeless in the Great Depression.

(c) 2007 Independent News and Media Limited





  • [Livingontheland] The wrath of 2007: America's great drought, TradingPostPaul, 06/26/2007

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