久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

   

US scientists affirm predictions of sea ice loss

(AP)
Updated: 2007-09-07 14:45

ANCHORAGE, Alaska -- An analysis of 20 years' worth of real-life observations supports recent UN computer predictions that by 2050, summer sea ice off Alaska's north coast will probably shrink to nearly half the area it covered in the 1980s, federal scientists say.


A mother polar bear and her cub sleep near the ice outside Churchill, Canada Nov. 4, 2006. [AP]

Such a loss could have profound effects on mammals dependent on the sea ice, such as polar bears, now being considered for threatened species status because of changes in habitat due to global warming. It could also threaten the catch of fishermen.

In the 1980s, sea ice receded 30 to 50 miles each summer off the north coast, said James Overland, a Seattle-based oceanographer for the National Oceanic and Atmospheric Administration.

"Now we're talking about 300 to 500 miles north of Alaska," he said of projections for 2050.

That's far past the edge of the highly productive waters over the relatively shallow continental shelf, considered important habitat for polar bears and their main prey, ringed seals, as well as other ice-dependent mammals, such as walrus.

The NOAA researchers reviewed 20 computer scenarios of the effects of warming on sea ice, used by the United Nations' Intergovernmental Panel on Climate Change in its assessment report released this year.

The researchers compared those models with observations from 1979 through 1999, Overland said, and concluded that the summer ice in the Beaufort Sea likely will have diminished by 40 percent, compared with its 1980s area.

The same is likely for the East Siberian-Chukchi Sea region off northwest Alaska and Russia. In contrast, Canada's Baffin Bay and Labrador showed little predicted change.

There was less confidence for winter ice, but the models also predict a sea ice loss of more than 40 percent for the Bering Sea off Alaska's west coast, the Sea of Okhotsk east of Siberia and the Barents Sea north of Norway.

The research paper by Overland and Muyin Wang, a NOAA meteorologist, will be published Saturday in Geophysical Research Letters, a publication of the American Geophysical Union.

The situation is dire for polar bears, said Kassie Siegel of the Center for Biological Diversity, who wrote the petition seeking federal protection for the animals.


(For more biz stories, please visit Industry Updates)

   1 2   


久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

    欧美在线free| 久久一区二区视频| 天天色 色综合| 91精品免费观看| 韩国女主播一区二区三区| 国产三级欧美三级日产三级99| 粉嫩av一区二区三区| 亚洲人123区| 欧美区在线观看| 精品亚洲国内自在自线福利| 中文字幕的久久| 欧美色倩网站大全免费| 另类成人小视频在线| 国产欧美精品一区二区色综合朱莉| 91影院在线观看| 日韩av电影一区| 国产偷v国产偷v亚洲高清| 99精品久久久久久| 日韩av二区在线播放| 国产欧美精品一区二区色综合| 欧洲视频一区二区| 久久av资源站| 亚洲人xxxx| 欧美xxxxxxxx| 色诱亚洲精品久久久久久| 日韩av电影一区| 国产精品电影一区二区| 欧美精品日日鲁夜夜添| 国产69精品久久久久777| 亚洲国产精品一区二区久久恐怖片| 欧美刺激午夜性久久久久久久| 成人禁用看黄a在线| 天堂va蜜桃一区二区三区| 国产婷婷精品av在线| 欧美主播一区二区三区美女| 美女一区二区视频| 亚洲视频在线一区二区| 日韩午夜av一区| 91蜜桃视频在线| 精品一区二区免费看| 亚洲综合999| 久久久久久毛片| 精品视频一区二区三区免费| 国产成人福利片| 五月天久久比比资源色| 国产精品免费看片| 日韩午夜电影av| 91久久精品一区二区二区| 国产一区二区调教| 亚洲成精国产精品女| 亚洲国产精品ⅴa在线观看| 欧美一区二区视频观看视频| 91丨porny丨首页| 国产一区久久久| 日韩成人免费看| 亚洲精品成人a在线观看| 国产欧美精品国产国产专区 | 亚洲欧洲精品一区二区三区| 欧美不卡一二三| 欧美性猛交xxxx黑人交| 成人福利视频网站| 极品少妇xxxx精品少妇| 天天av天天翘天天综合网| 自拍偷拍亚洲欧美日韩| 久久久久亚洲蜜桃| 欧美va日韩va| 欧美日韩小视频| 色吊一区二区三区| 成人免费毛片片v| 国产麻豆视频精品| 蜜桃精品在线观看| 天堂va蜜桃一区二区三区漫画版 | 九一九一国产精品| 视频一区中文字幕国产| 亚洲激情在线播放| 亚洲欧美综合另类在线卡通| 国产欧美综合在线| 久久午夜老司机| 欧美va亚洲va香蕉在线| 日韩一区二区免费电影| 欧美日韩一区二区三区在线 | 欧美人伦禁忌dvd放荡欲情| 91久久精品一区二区二区| 91一区二区在线| 成人av网站在线观看免费| 国产一区在线不卡| 国产一区二区电影| 激情都市一区二区| 久久精品国产亚洲aⅴ| 青青草国产精品亚洲专区无| 午夜视频在线观看一区二区| 一级女性全黄久久生活片免费| 亚洲色图.com| 亚洲乱码国产乱码精品精的特点| 国产精品动漫网站| 中文字幕日韩欧美一区二区三区| 欧美国产亚洲另类动漫| 国产精品色哟哟| 国产精品麻豆视频| 国产精品福利一区二区| ...av二区三区久久精品| 亚洲日本免费电影| 亚洲一区在线视频观看| 亚洲国产成人高清精品| 亚洲成人av一区二区三区| 三级一区在线视频先锋| 日韩中文字幕91| 久久国产剧场电影| 国产呦萝稀缺另类资源| 国产激情一区二区三区四区 | 欧美日韩久久久久久| 欧美日韩国产a| 欧美一区二区三区在线看| 日韩三级伦理片妻子的秘密按摩| 精品国产一区二区亚洲人成毛片| 久久久久久久久一| 国产精品久久久久毛片软件| 亚洲图片激情小说| 亚洲一区二区欧美激情| 日本欧美在线观看| 精品系列免费在线观看| 国产91色综合久久免费分享| 成人av网址在线| 欧美性受xxxx黑人xyx| 欧美一区二区在线免费播放 | 亚洲卡通欧美制服中文| 亚洲成国产人片在线观看| 蜜臀av一级做a爰片久久| 国产资源精品在线观看| bt7086福利一区国产| 日本电影亚洲天堂一区| 欧美丰满少妇xxxbbb| 久久日韩精品一区二区五区| 欧美国产欧美亚州国产日韩mv天天看完整| 亚洲欧洲精品一区二区精品久久久 | 久久九九99视频| 中文字幕五月欧美| 五月天精品一区二区三区| 久久国产生活片100| 成人久久18免费网站麻豆| 日本精品免费观看高清观看| 正在播放一区二区| 国产亚洲成aⅴ人片在线观看| 亚洲裸体xxx| 久久se这里有精品| 91免费在线播放| 欧美一区二区精品在线| 中文字幕 久热精品 视频在线| 亚洲综合成人在线| 国产一区二区三区不卡在线观看| 91麻豆成人久久精品二区三区| 欧美精品一卡二卡| 欧美激情综合五月色丁香| 亚洲444eee在线观看| 国产福利一区二区三区视频在线| 日本精品视频一区二区三区| 欧美成人女星排行榜| 亚洲色图色小说| 韩国中文字幕2020精品| 91福利视频久久久久| 精品精品国产高清a毛片牛牛 | 亚洲免费观看高清完整版在线观看| 日韩精品1区2区3区| 成人av免费在线播放| 制服丝袜成人动漫| 最新国产精品久久精品| 日本视频在线一区| 91网站视频在线观看| 日韩精品一区二区三区视频| 亚洲欧美另类图片小说| 精品一区精品二区高清| 欧美艳星brazzers| 国产日韩欧美精品在线| 丝袜诱惑制服诱惑色一区在线观看 | 麻豆久久久久久久| 在线欧美日韩国产| 国产日产欧美精品一区二区三区| 午夜av一区二区| eeuss鲁片一区二区三区在线看| 日韩午夜激情av| 亚洲伊人伊色伊影伊综合网| 成人午夜在线免费| 精品日韩成人av| 亚洲成人手机在线| 99久久精品免费看国产免费软件| 精品国产一区二区三区久久影院| 亚洲高清在线视频| www.在线欧美| 久久久一区二区| 免费不卡在线视频| 欧洲亚洲精品在线| 亚洲欧洲99久久| 国产高清久久久| 欧美v日韩v国产v| 日韩高清欧美激情| 欧美日韩在线播放三区四区| 最新国产の精品合集bt伙计| 国产成人综合在线播放| 日韩精品一区二区三区老鸭窝 | 日韩色视频在线观看|