介绍： 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 Anta...

介绍： 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.
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.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.
从天气预报可以看出，世界各地每天的气温都时上时下，所以很难注意到平均每年上升的一两度。但这项新研究的合著者、伦敦帝国理工学院的马丁 希格特(Martin Siegert)教授表示，当我们审视气温升高对南极洲的影响时，数据是非常惊人的。
我们注意到冰原大量消失；我们看到风向在发生改变；我们看到海洋温度上升、酸度升高，生物多样性发生改变。实际上，我们现在观察到的南极洲的数据，以及过去几十年里的数据都表明改变正在发生。
有人根据过去30年来150多次从地面和太空获取的测量数据建立了计算机模型，这些模型指向了一个令人担忧的趋势。1992-2011年间，南极洲平均每年有760亿吨冰消失.