The world's second largest ice sheet is about to collapse! Scientist Helplessly: It's too late to go home.

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The world's second largest ice sheet is about to collapse! Scientist Helplessly: It's too late to go home.

2019-01-31 10:26:12 30 ℃
An important study earlier this year pointed out that Antarctica melts more than six times as much ice every year as it did 40 years ago. Although the report does not study the situation in the Northern Hemisphere, it has been proved that such an unoptimistic thing is happening in the far Arctic as well. Scientists at Oregon State University in the United States observed satellite data of the southwestern Greenland ice sheet and found that the melting rate of the relatively stable ice sheet had almost quadrupled that of 2003 in just nine years up to 2012. From 2002 to 2016, the Greenland ice sheet melted about 28 billion tons of ice annually, enough to raise sea level by 0.076 centimeters annually. Based on this, scientists have come to a grim conclusion that the Earth's ice sheet has reached the critical point of collapse.

"The Greenland ice sheet is melting at an incredible rate, but there is nothing we can do about it." Michael Bevis, a professor at Ohio State University, wrote in his paper. The only thing we can do is to adapt to and slow down further global warming, but it's too late. "Nothing will help save Greenland's tens of billions of tons of melted ice." For tens of thousands of years,

the unstable natural climatic phenomena caused by the North Atlantic Oscillation (NAO) will disturb the atmospheric pressure at sea level, thus increasing both the amount of glacier melting and the rate of glacier melting. But before the Industrial Revolution, the carrying capacity of nature enabled the ice sheet to withstand such climate disturbances. Until human industrial activities accelerated global warming, the natural balance was finally broken. In other words, human-induced global warming is responsible for the melting of the Greenland ice sheet, and the North Atlantic Oscillation has only deepened its impact. According to

Bevis, we are almost on the road of no return. The warming climate has changed the natural environment and climate cycle, which makes Greenland's ice sheet melt faster and faster, and the melting ice sheet will further promote the rise of global temperature, which is an irreversible vicious circle. The first challenge we face is the acceleration of sea level rise. In the future, the coastal areas will be submerged by rising sea water, and human beings may be forced to migrate to the plateau and the center of the mainland. The living area will become smaller and smaller. Freshwater available for drinking will also become scarce. Human civilization may also be greatly hit. The root cause of all this is the unrestricted destruction of the environment by human beings themselves.

How serious will the consequences of global warming be? Even Professor Michael Bevis, who specializes in climate change, asks, but no one knows the answer.

Author/Zhu Zhanghangyue