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http://ameblo.jp/warm-heart/entry-10114903094.html から転載。 2008-07-10 20:52:50 真冬だというのにアルゼンチンでもっとも有名な氷河、ペリト・モレノ氷河(ロス・グラシアレス国立公園)で、氷の崩落が起こっているという。 国立公園の関係者は、夏には氷魂の崩落はみられるが、これまで6月から8月の冬に起こった記録はない、と語っている。 公園監督官のカルロス・コルバラン氏は、先週金曜日から始まった崩壊は、地球温暖化による可能性がある、と述べた。 専門家によると、気候変動の影響で山岳氷河のざっと90%が縮小していっている。 熱帯アンデスの氷河は今世紀半ばにはすべて消滅するだろうと、科学者たちは予測する。 ============================================= 以下記事の詳細はこちら ⇒ http://www.msnbc.msn.com/id/25590432/ Officials at the Los Glaciares National Park in Santa Cruz Province said there was no record of such an ice break during the winter months of June through August, although breaks during summer melts happen regularly. Park director Carlos Corvalan said the rupture, which began last Friday, could be caused by global warming. The Perito Moreno glacier cuts Lake Argentino in two. Water flows beneath the ice when the level on one side of the lake rises higher than the other. The rushing water erodes the ice and sometimes causes it to collapse. Climate change is causing roughly 90 percent of the world's mountain glaciers to shrink, said Lonnie Thompson, a glacier expert at Ohio State University who this year received a National Medal of Science from President Bush. "The picture points unfortunately (to) massive loss of ice on land, which has huge implications for future sea level rise," he said. The U.N. Intergovernmental Panel on Climate Change says global temperatures are likely to warm from 2 degrees to 11.5 degrees Fahrenheit by the end of the century if no major efforts are undertaken to reduce greenhouse gas emissions. In Bolivia, north of Argentina, the capital La Paz gets a third of its water from a tropical Andes glacier that's nearly vanished. Scientists predict that all the glaciers in the tropical Andes will disappear by mid-century. The implications are dire not just for La Paz but also for Quito, Ecuador, and Bogota, Colombia. More than 11 million people now live in those burgeoning cities.
gataro-cloneの投稿
真冬なのに氷河崩壊/アルゼンチン南部で温暖化の影響か?【MSNBC】
テーマ:環境・農業
AP通信の配信記事をMSNBCが次のように伝えている。
Argentine glacier calves — in dead of winter
No previous record of famed Perito Moreno rupturing during the cold
updated 3:49 p.m. ET July 8, 2008
BUENOS AIRES, Argentina - Perito Moreno, Argentina's most famous glacier, has begun calving when one would least expect it — the Southern Hemisphere's winter.
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