南极冰川的融化速度比我们想象得要快 分享到
Antarctica Losing Ice Faster Than Thought 2018-06-2459260

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Daily temperatures everywhere in the world rise and fall according to the local weather,so it is hard to notice the average annual rise of a degree or two.But Professor Martin Siegert of Imperial College in London, the co-author of the new study says when we look at the impact of rising temperatures on Antarctica, the picture is dramatic.
世界各地的每日气温根据当地天气而升降,所以年平均气温增长一两度很难注意到。但这项新研究的合作者,英国帝国理工学院的马丁·希格特教授表示,当我们研究温度上升对南极洲的影响时,就会发现,气温升高的变化很引人注目。
“We’re noticing the ice sheets being lost, reducing in mass, we’re seeing wind patterns that are changing.We’re seeing ocean temperatures increasing, ocean acidity increasing, changes to biodiversity.In fact everything that we look at in Antarctica and we’ve got records going back several decades now are pointing to change.”
“我们注意到冰盖数量在减少,质量不断流失。我们看到风向在改变。海洋温度升高,海洋酸度增加,生物多样性变化。事实上,我们在南极洲看到的所有事情,以及我们过去几十年的记录,都表明南极在悄然发生着变化。”
Computer models based on more than 150 measurements made on the ground and from space over the last 30 years show an alarming trend.From 1992 to 2011 Antarctica lost an average of 76 billion tons of ice each year,but in the five years that followed, the annual loss nearly tripled to more than 219 billion tons.
基于过去30年在地面和太空中进行的超过150次测量的计算机模型显示:趋势令人担忧。从1992年到2011年,南极洲每年平均损失760亿吨冰块,但在接下来的5年里,每年的损失增加了近两倍,超过2,190亿吨。
“So it’s completely possible for Antarctica to contribute several tens of centimeters in this century.”Scientists say the main culprit is the release of carbon dioxide into the atmosphere but if we act now there may still be a chance to reverse the trend.“And so we have to ask ourselves:Is that the world that we want our future to be like and of course the answer is: It can’t be. It can’t be that.And what we’re saying in this paper is (that) we need to recognize that Antarctica is changing and is heading a certain way and we need to act now.Choices we make now are going to shape what the future of the southern continent is going to be like.”
“所以南极冰川完全有可能在本世纪消失几十厘米。”科学家表示,主要的罪魁祸首是排放到大气中的二氧化碳,但如果我们现在采取行动,可能仍有机会扭转这一趋势。“所以我们必须问自己:我们希望未来的世界是这个样子吗?当然,答案是:不希望。未来不能变成这样。我们在这篇论文中想要传达的是,我们需要认识到南极洲正在发生变化,正在朝着某种不好的趋势变化,所以现在需要采取行动。我们现在所做的选择将会塑造南极洲的未来。”
But some say it may already be too late.The study shows some of the ice shelves have been irreversibly lost and the rise in acidity of the ocean water is likely to lead to the extinction of some marine life.
但有人说可能已经太晚了。研究表明,一些冰架已经不可逆转地消失了,海水酸度升高也可能导致一些海洋生物灭绝。
George Putic, VOA news.
VOA新闻,乔治·普特为您播报。

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