日韩经典AV在线观看_chinese情侣自拍啪hd_日本高清视频不卡_成人网站YSL千人千色_精品黑人一区二区三区_国产 日韩 欧美 精品 大秀

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: 女教师巨大乳孔中文字幕 | 一个人免费观看在线视频www | 亚洲中文字幕乱码av波多ji | JAPANESE极品丰满少妇 | 国产丝袜av一区二区三区性色 | 亚洲欧洲成人精品香蕉网 | 色婷婷亚洲婷婷八月中文字幕 | 日韩欧美中文字幕精品 | 精品无人区无码乱码毛片国产 | 国产黑色丝袜在线视频 | 亚洲精品一区二区久 | 欧美性爱一级黄片 | 欧美亚洲国产片在线播放 | 国产亚洲第一精品综合Av | 偷摄私密养生馆少妇推油 | 精品麻豆剧传媒av国产九九九 | 91导航在线观看 | 国产久草在线视频 | 久久久久久久久久毛片 | 午夜香吻高清观看视频在线 | 国产片AV国语在线观看 | 精品免费二区三区三区高中清不卡 | 欧美操操网 | 国产三级在线看 | 中文字幕丝袜精品久久 | 99久久字幕re6热精品首页 | 性感美女网 | 欧美特级黄色大片 | 亚洲精品国产99 | 中文在线视频观看 | 狠狠人妻久久久久久综合 | 精品国模一区二区三区浪潮 | 国产精品一级特婬AV片在线看 | 伊人网在线视频 | 99久热这里只有精品视频免费观看 | 噜噜噜在线观看免费视频日本 | 77777熟女视频在线观看 | 久久精品国产亚洲AV麻豆不卡 | 国产一区二区成人h动漫精品 | 中国av在线免费观看 | 久久久久久国产精品亚洲78 |