標題:Melting Ice Brings Competition for Resources
新聞來源:http://www.spiegel.de/international/world/0,1518,579265,00.html
(需有正確連結)
By Gerald Traufetter
Climate change is freeing the Arctic of ice -- and spurring a global
competition for the natural resources stored beneath. Countries that border
the sea are staking new territorial claims and oil giants are dispatching
geologists. But what will the tug-of-war mean for the indigenous people and
wildlife?
Bo Madsen, a climate researcher, is plagued by a simple question: How heavy
is the world's largest island? More importantly, Madsen wants to know how
quickly its weight is changing.
"This is no academic question," the Dane yells over the whipping of the rotor
blades. "The answer will determine the fate of millions of people."
Greenland's majestic landscape glides by beneath the helicopter. A mottled
gray-and-white glacier tongue winds its way down a series of mountain slopes.
Farther up, the jagged terrain gives way to a smooth, seemingly endless
expanse of white, capped by a glistening aura that makes it difficult to
distinguish between the sky and the surface of the ice cap.
The scientists have spent the last two hours flying over the edge of the
inland ice in their Super Puma helicopter. The gigantic ice cap is close to
three kilometers (1.86 miles) thick. If it were to melt, sea levels worldwide
would rise by seven meters (23 feet), spelling the end for many coastal
cities.
"Did we load the cordless screwdriver?" the 53-year-old Madsen asks his
partner, American scientist Eric Kendrick. There is tension in the air,
almost as heavy as the metallic chirping of the chopper's drive shafts.
How does one measure the recession of an ice cap? A lone mountain peak
protrudes from the glacier ice. This is where the Danish and American
geophysicists plan to set up their measuring equipment. Their project, called
GNET, will be part of a formidable scientific observation network, an early
warning system of measuring stations and satellites designed to monitor the
Greenland ice cap.
"The stations measure the height of the mountain tops once every 30 seconds,"
Madsen explains, "down to the nearest half a millimeter." This precision is
made possible by the radio signals emitted by GPS navigation satellites
orbiting the earth. The data give the scientists an indirect gauge of how
fast the ice is melting, because rising land means, simply, that the weight
of the ice resting on it is decreasing.
The researchers have already installed two dozen of these stations all over
Greenland, and they have been transmitting data for the past year. According
to initial calculations, Greenland has lost 150 billion tons of ice a year in
the last four years. This is five times the size of the Aletsch Glacier, the
largest glacier in the Alps.
GNET will provide certainty, for the first time, on one of the most important
questions of global warming: How quickly is the Greenland ice cap melting?
Will it take hundreds of years? Or is the ice melting faster than that? "Soon
we will be able to tell mankind by how much sea levels will actually rise in
the next 100 years."
Climate researchers like Madsen are the chroniclers of an unprecedented
change. The amplified greenhouse effect caused by the burning of fossil fuels
heats the earth's atmosphere, and nowhere else in the world do the
consequences become noticeable as quickly as in the still-frosty Arctic
regions.
Temperatures along the icy shores of the northern Arctic Ocean are rising
twice as fast as in the more southerly latitudes. Computer models predict a
rise in temperatures there by up to eight degrees Celsius (14 degrees
Fahrenheit) by the end of the century. "We are on the front lines of climate
change," says Madsen. While global warming is still a problem of the future
in many places, the big thaw at the North Pole has been underway for some
time. Since the mid-1970s, the white crust of sea ice covering the North Pole
in the summer months has shrunk by about half, from eight million to four
million square kilometers (3.1 million to 1.55 million square miles). This
has exposed an expanse of water more than 10 times the size of Germany, or
somewhat larger than India.
Satellite images reveal that this is another record year. The Northwest
Passage has been ice-free since early August for the second year in a row.
And there is practically no pack ice left in the Northeast Passage, north of
the Siberian coast. This is unprecedented in recent history.
Temperatures are rising in the North Atlantic, and the permafrost soil in
Siberia, Canada and Alaska is softening. According to the Intergovernmental
Panel on Climate Change (IPCC), the Arctic is subject to "stronger and faster
warming than any other region."
Arctic animal and plant species must adjust to far more extreme changes than
elsewhere -- or face the threat of extinction. It is not surprising that the
polar bear has become a symbol of climate change.
People also live in the Arctic region. The Inuit are the ancestral settlers
of the north. They number about 100,000 and are scattered across Alaska,
Canada, Greenland and Siberia. Their familiar habitat is sinking as the
permafrost soil softens.
Some stand to benefit from the end of the ice era. As if awakening from a
deep sleep, the five nations bordering the Arctic -- the United States,
Russia, Canada, Norway and Denmark -- are already grasping for new riches:
●As the wheat farming zone shifts farther to the north in Siberia, the
Russians are looking forward to rich harvests.
●Farmers in Greenland recently began growing potatoes and broccoli, making the
territory less dependant on shipments from the south.
●US aluminum producer Alco plans to build a huge aluminum smelter near
Greenland's capital city, Nuuk. Hydroelectric power from melting glaciers
will provide the electricity for the plant.
●As the ice melts, previously impassable shipping routes become navigable.
Large amounts of money and effort are already being poured into expanding
ports like Murmansk, Churchill and Hammerfest.
●Most of all, the Arctic is releasing unimagined amounts of resources,
especially oil and gas, but also various ores.
--
「就像其他各類集體主義一樣，種族主義也尋求不勞而獲。它尋求自動獲得知識﹔它尋求
自動評價人們的品質而忽略運用理性或道德判斷的責任﹔而更重要的是，它尋求自動的自
尊（或偽自尊）」
Ayn Rand<The Virtue of Selfishness>
致台灣之光的影迷跟球迷
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