INTRODUCTION
Chapter 2. Signs of Stress: Climate and Water
Lester R. Brown, Eco-Economy: Building an Economy for the Earth
(W.W. Norton & Co., NY: 2001).
On August 19, 2000, the New York Times reported
that an icebreaker cruise ship had reached the North Pole only to
discover this famous frozen site was now open water. For a generation
that grew up reading the harrowing accounts of explorers such as
American Richard Byrd trying to reach the North Pole as they battled
bitter cold, ice, and snow, this new view taxed the imagination.1
In its many earlier trips to the North Pole, the cruise ship had
allowed passengers to disembark in order to be photographed standing
on the ice. This time, the ship had to move several miles away to
find ice thick enough for the photo session. If the explorers of
a century or so ago had been trekking to the North Pole in the summer
of 2000, they would have had to swim the last few miles.
Media reports of melting ice typically focus on individual glaciers
or ice caps, but the ice is melting almost everywhere. Given that
the 14 warmest years since recordkeeping began in 1866 have all
occurred since 1980, this does not come as a surprise.2
Water shortages are also in the news. Some of the world's major
rivers are being drained dry, failing to reach the sea. Among them
is the Colorado, the major river in the southwestern United States.
In China, the Yellow River, the northernmost of the country's two
major rivers, no longer reaches the sea for part of each year. In
Central Asia, the Amu Darya sometimes fails to reach the Aral Sea
because it has been drained dry by upstream irrigation.3
Wells are going dry on every continent. As population expands and
incomes rise, the demand for water is simply outrunning the supply
in many countries. Those with money drill deeper wells, chasing
the water table downward. Those unable to deepen their wells are
left in a difficult position.
The situation promises to become far more precarious, since the
3.2 billion people being added to world population by 2050 will
be born in countries already facing water scarcity. With 40 percent
of the world food supply coming from irrigated land, water scarcity
directly affects food security. If we are facing a future of water
scarcity, we are also facing a future of food scarcity.4
ENDNOTES:
1. John Noble Wilford, "Ages-Old Icecap at North Pole Is Now Liquid,
Scientists Find," New York Times, 19 August 2000.
2. J. Hansen, "Global Temperature Anomalies in .01 C," www.giss.nasa.gov/data/update/gistemp,
viewed 8 June 2001.
3. Sandra Postel, Last Oasis, rev. ed. (New York: W.W. Norton &
Company, 1997).
4. Population estimate for 2050 is medium-variant estimate from
United Nations, World Population Prospects: The 2000 Revision (New
York: February 2001); share of food from irrigated cropland from
World Resources Institute (WRI), World Resources 2000-2001 (Washington,
DC: 2001), p. 64 .
Copyright
© 2001 Earth Policy Institute
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