In
1989 the world gave ten years to avert disaster.
Here
we are!
U.N. PREDICTS DISASTER IF GLOBAL WARMING NOT CHECKED
Jun.
29, 1989 10:49 PM ET
UNITED
NATIONS (AP) _ A senior U.N. environmental official says entire
nations could be wiped off the face of the Earth by rising sea levels
if the global warming trend is not reversed by the year 2000.
Coastal
flooding and crop failures would create an exodus of ''eco-
refugees,' ' threatening political chaos, said Noel Brown, director
of the New York office of the U.N. Environment Program, or UNEP.
He
said governments have a 10-year window of opportunity to solve the
greenhouse effect before it goes beyond human control.
As
the warming melts polar icecaps, ocean levels will rise by up to
three feet, enough to cover the Maldives and other flat island
nations, Brown told The Associated Press in an interview on
Wednesday.
Coastal
regions will be inundated; one-sixth of Bangladesh could be flooded,
displacing a fourth of its 90 million people. A fifth of Egypt's
arable land in the Nile Delta would be flooded, cutting off its food
supply, according to a joint UNEP and U.S. Environmental Protection
Agency study.
''Ecological
refugees will become a major concern, and what's worse is you may
find that people can move to drier ground, but the soils and the
natural resources may not support life. Africa doesn't have to worry
about land, but would you want to live in the Sahara?'' he said.
UNEP
estimates it would cost the United States at least $100 billion to
protect its east coast alone.
Shifting
climate patterns would bring back 1930s Dust Bowl conditions to
Canadian and U.S. wheatlands, while the Soviet Union could reap
bumper crops if it adapts its agriculture in time, according to a
study by UNEP and the International Institute for Applied Systems
Analysis.
Excess
carbon dioxide is pouring into the atmosphere because of humanity's
use of fossil fuels and burning of rain forests, the study says. The
atmosphere is retaining more heat than it radiates, much like a
greenhouse.
The
most conservative scientific estimate that the Earth's temperature
will rise 1 to 7 degrees in the next 30 years, said Brown.
The
difference may seem slight, he said, but the planet is only 9 degrees
warmer now than during the 8,000-year Ice Age that ended 10,000 years
ago.
Brown
said if the warming trend continues, ''the question is will we be
able to reverse the process in time? We say that within the next 10
years, given the present loads that the atmosphere has to bear, we
have an opportunity to start the stabilizing process.''
He
said even the most conservative scientists ''already tell us there's
nothing we can do now to stop a ... change'' of about 3 degrees.
''Anything
beyond that, and we have to start thinking about the significant rise
of the sea levels ... we can expect more ferocious storms,
hurricanes, wind shear, dust erosion.''
He
said there is time to act, but there is no time to waste.
UNEP
is working toward forming a scientific plan of action by the end of
1990, and the adoption of a global climate treaty by 1992. In May,
delegates from 103 nations met in Nairobi, Kenya - where UNEP is
based - and decided to open negotiations on the treaty next year.
Nations
will be asked to reduce the use of fossil fuels, cut the emission of
carbon dioxide and other greenhouse gases such as methane and
fluorocarbons, and preserve the rain forests.
''We
have no clear idea about the ecological minimum of green space that
the planet needs to function effectively. What we do know is that we
are destroying the tropical rain forest at the rate of 50 acres a
minute, about one football field per second,'' said Brown.
Each
acre of rain forest can store 100 tons of carbon dioxide and
reprocess it into oxygen.
Brown
suggested that compensating Brazil, Indonesia and Kenya for
preserving rain forests may be necessary.
The
European Community is talking about a half-cent levy on each kilowatt-
hour of fossil fuels to raise $55 million a year to protect the rain
forests, and other direct subsidies may be possible, he said.
The
treaty could also call for improved energy efficiency, increasing
conservation, and for developed nations to transfer technology to
Third World nations to help them save energy and cut greenhouse gas
emissions, said Brown.
No comments:
Post a Comment
Note: only a member of this blog may post a comment.