国产原创中文字幕在线观看-国产孕妇福利3在线观看-国产孕妇故爱a级高清片免费看-国产孕妇故爱级高清片免费看-国产孕妇直播在线观看-国产在视频在线观看

Welcome to Guangdong saide Industrial Group Co., Ltd.
Service hotline:
0755-29490339

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

Time:2018-01-06 Views:286
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.
  • Previous:  2018/01/09
  • Next:British media said China will dominate the world electric car market  2018/01/06
  • 主站蜘蛛池模板: 美人妻久久一区蜜桃臀av | 丰满少妇诱惑网址 | 免费无码AⅤ片在线观看最新 | 国产午夜福利 | 中文熟妇人妻又伦精品视频 | 午夜成人视频在线的免费观 | 国产一天三次精品无码91 | 成人十八禁糖心VLOG在线观看 | 福利视频免费观看 | 中文字幕日本乱伦爱一区二区三区 | 亚洲无码av一区二区三区 | 日本成色视频一区二区三区 | 日韩无| 国产拍av内在线播放 | 亚洲成人TV | 午夜成人视频 | 网址导航日韩精品网站 | 火爆久草| 亚洲av123| 国产中文字幕网 | 久久福利网 | 人与嘼一区二区三区 | 男人永久激情影院 | 久久福利91 | 午夜国产精品无码福利蜜乳 | 狠狠干狠狠插 | 8x8插插日韩 | 又小又紧又嫩15少妇视频 | 波多野结衣一卡二卡 | 含羞草亚洲AV无码久久精品小说 | 在线观看无码A片 | 熟妇偷情自拍 | 精品秘 精品区PoinFree | 亚洲av网址| 中文字幕国产精品第一页 | 国产二三区 | 亲子伦XX XX熟女 | 亚洲无码制服丝袜强奸乱伦 | 丰满大屁股熟妇 | 日韩精品毛片无码一区到三区下载 | 日本无码在线观看 |