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研究发现，未来几十年南极洲变暖速度可能比南半球其他地区快 1.4 倍
由于北极地区普遍存在的极地放大现象，南极洲在未来几十年内变暖的速度可能会比周围地区快得多。
来源:LiveScienceAntarctica could heat up 1.4 times faster than the rest of the Southern Hemisphere over the coming decades, which would lock in extreme sea-level rise and ravage polar ecosystems, a new modeling study shows.
This acceleration of warming in Antarctica relative to other regions, known as Antarctic amplification, would likely occur if global temperatures reached 3.6 degrees Fahrenheit (2 degrees Celsius) above preindustrial levels, according to the study.全球气温已上升 2 华氏度（1.1 摄氏度），并且刷新气温记录的速度正在加快。 If emissions stay around current levels, we will likely reach 3.6 F of warming around 2050— but if emissions keep rising, we could hit that threshold around 2040.
The new research is among the first to find a clear sign of Antarctic amplification, which has been hard to detect due to the Southern Ocean's enormous capacity to absorb heat and the powerful circumpolar currents that isolate the frozen continent from rising temperatures.然而大多数科学家认为南极的放大将会发生，因为北极的放大已经在进行中。
"For many years, Antarctica seemed isolated from the effects of increasing global temperatures," Ariaan Purich, a senior lecturer and climatologist at Monash University in Australia who was not involved in the research, told Live Science in an email. "In this new study, the authors propose that long-term surface warming of the ocean around Antarctica, projected by climate models over the coming century, leads to Antarctic amplification."
Antarctica behaves differently, partly because swirling ocean and wind currents shield the continent from rising air and sea temperatures elsewhere in the world.普里奇说，与北极相反，南极洲大部分地区直到大约十年前才经历了逐渐变暖，海冰没有减少。
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