关键洋流减弱,增加类似“冰河时代”降温的风险。
Key Ocean Current Faltering, Raising Risk Of "Ice Age"-Like Cooling

原始链接: https://www.zerohedge.com/markets/key-ocean-current-faltering-raising-risk-ice-age-cooling

一项新研究警告,由于大西洋经向翻转环流(AMOC)减弱,可能出现“冰河时代”情景。AMOC是一个关键的洋流系统,包括墨西哥湾暖流。来自中国科学院和加州大学圣地亚哥分校的研究人员检测到一种令人担忧的“温度指纹”,表明AMOC正在减速,这与格陵兰冰盖融化以及北大西洋淡水增加有关。 该研究利用气候模型和历史数据,预测AMOC可能在2100年前崩溃。这可能导致欧洲剧烈降温——可能高达华氏15.6摄氏度——以及干旱。AMOC上次崩溃大约发生在12,000年前,与冰河时代结束同时发生,凸显了这种破坏可能对全球气候产生的重大影响。

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原文

And just like that we're free from climate hysteria and worried about a new "ice age"...Funny how that works, isn't it? 

A new study in Communications Earth & Environment warns that a key Atlantic current could near collapse within decades, potentially triggering an “ice age” scenario and major sea-level rise, according to the NY Post.

The research, from the Chinese Academy of Sciences’ Institute of Oceanology and UC San Diego, focuses on the Atlantic Meridional Overturning Circulation (AMOC), the “conveyor belt of the ocean” that includes the Gulf Stream and helps keep Europe, the U.K., and the U.S. East Coast relatively mild.

The Post writes that the study argues that warming temperatures are melting the Greenland ice sheet, sending freshwater into the North Atlantic and slowing the AMOC. Researchers say they’ve detected a related “distinctive temperature fingerprint” several thousand feet below the surface.

“Here we identify a distinctive temperature fingerprint in the equatorial Atlantic that signals the Atlantic Meridional Overturning Circulation change,” they wrote, adding that its “robust physical mechanism and reliable detection make [this fingerprint] a valuable metric for AMOC monitoring in a warming climate.”

Using the MITgcm climate model and ocean data back to 1960, the team concludes the AMOC has been weakening since the late 20th century and could collapse before 2100. If that happened, Europe could face drastic cooling — possibly nearly 60 degrees — and drier conditions. As Jonathan Bamber told the Daily Mail, “Winters would be more typical of Arctic Canada and precipitation would decrease, also.”

Reuters notes the AMOC last collapsed before the Ice Age ended roughly 12,000 years ago.

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