放荡老师张开双腿任我玩-非洲一级婬片免费放天天-绯色一区二区-肥老上视频-费精品国产一区国产精品剧情在线-丰满成熟亚洲人毛茸茸

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: 真实国产日韩欧美全部综合视频 | 一区二区性爱视频 | 亚洲综合图 | 国产91对白在 | 玩弄老太婆的屁股眼 | 中文字幕按摩做爰 | 手机免费在线观看完整版 | 911精品国产一区二区在线 | 亚洲欧美日韩中文字幕在线一 | 亚洲精品成人一区二区www | 欧美综合精品一区二区二 | 老师脱了内裤让我进去 | 五月天在线观看视频网站 | 国产日韩另类视频一区爱 | 国产精品福利尤物youwu | 专区中文字幕视频专区 | 国产高清一区二区视频 | 7799国产大片免费看 | 国产伦一区二区三 | 欧美亚洲综合卡通另类区 | 亚洲欧美日本v | 天堂资源中文在线 | 污网站免费在线观看 | 美女被男人桶到爽免费网站 | 一区二区三区精品 | 区三区放荡人妇 | 国产精品福利片免费看 | 97国产在线看片免费人成视频 | 一级大片网站 | 免费国产黄频在线观看视频 | 一区在线观 | 大陆国语自产精品视频在 | 九九热视频免费在线观看 | 亚洲变态欧美另类精品 | 亚洲va中文字 | 亚洲码国| 性xxx| 精品国内自产拍在线视频 | 91?黑料?精品?国产 | 91国在线啪精品一区 | 五月丁香六月婷婷综合网缴情 |