久久久久无码精品成人无码-久久久久无码精品国产-久久久久无码精品国产91福利-久久久久无码精品国产办公室-久久久久无码精品国产高潮-久久久久无码精品国产情侣

Welcome to Shanghai Earntz Nonwovon Co.,ltd

Arctic ice melting at an alarming rate 2040 may be completely ice-free existence

Time:2020-03-04 Views:57
According to a report by Russian satellite network on May 5, a new report released by Arctic Council Arctic Monitoring and Evaluation Plan (AMAP) Working Group said that the Arctic is rapidly melting and may be completely ice-free by 2040. In the meantime, a study by the University of Leeds in the United Kingdom found that in Antarctica, ice melts at a rate of about one-third of its expected value.
Why Arctic ice and snow melted so fast, and Antarctic ice and snow melting speed so slow? Reported that the reason for this problem is more complicated. On the surface, there are many similarities between the North Pole and the Antarctic: both are cold, sparsely populated, snow-covered wastelands at two levels of the Earth. But they are also fundamentally different: the Arctic is a sea surrounded by land (such as Alaska, Canada and the northern part of Russia), while the Antarctic is a land surrounded by the sea. The Arctic is thought to be essentially a giant ice mass in the Arctic Ocean, while Antarctica is land covered by snow and ice.
The report said that "essentially, the two effects of global warming can be offset by each other in the context of Antarctica. Both polar sea ice are melting at a faster rate (the number of sea ice both hit a record low in February ), The snow cover in Antarctica has resulted in the formation of ice sheets in some areas. "
Climatologists point out that increasing snowfall is another side effect of climate warming. One of the consequences of global warming is the increase in ocean evaporation, as the heat of the ocean sends water vapor into the atmosphere. As the water vapor in the atmosphere increases, rainfall and snowfall will also increase accordingly.
In the past, snowfall in Antarctica was rare, but the warming of the mainland led to a wider range of frequent snowfalls in Antarctica. In contrast, however, the amount of ice in the Arctic has been steadily declining since the early 2000s.
Simply put, since the Arctic is cold, only less water vapor can enter the atmosphere. This means that there is very little snowfall in the Arctic and snowfall is scarce.
Antarctica has its own wind and ocean current, and thus isolated from the trend of global warming, while the Atlantic Ocean winds and the Arctic Ocean has brought a greater impact.
主站蜘蛛池模板: 午夜A片麻豆精东传媒 | 无码AV网 | 国产精品国产三级国产AⅤ原创 | 无码人妻一区二区三区线花季转件 | 熟女人妻精品猛烈进入 | 四季AV无码一区二区三区在线播放 | 无码人妻丰满熟妇**网站牛牛 | 免费在线看黄 | 久久精品久久喷水 | 国产 高潮 白浆 喷 AV一区二区在线观看 | 人妻熟妇国产乱码精品精 | A片高潮狂喷白浆 | 91丨九色丨国产 在线 | 无码人妻精品一区二区三区99仓 | 寡妇高潮A片免费播放 | 无码午夜精品一区二区三区视频 | 性影院内射一区 | 国产精品羞羞视频 | 欧美久草| 免费观看国产美女裸体视频 | 无码一二大地三区 | 91麻豆精品国产理伦片在线观看 | 无码精品免费 | 在线观看 禁无码 | 天天干天天插 | 亚洲一区二区三区在线视频 | 麻豆影音| 无码成人一区二区三区入厕偷拍 | 91社在线播放 | 国产裸体永久免费无遮挡 | 超碰人妻97| 亚洲熟妇少妇熟女A片百度知道 | 国产黄A片免费网站免费 | A片高潮狂喷白浆 | av五码在线网 | 丰满少妇猛烈进入A片久久久老牛 | 精品国产成人 | 精品无码一区二区三区在线播放 | 苍井空网站 | 免费播放婬乱男女婬视频国产 | 精品人妻无码一区二区三区四川人 |