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

  Home>News Center>China
       
 

Researcher: pollution limits sunshine in big cities
(AP)
Updated: 2006-01-29 08:48

China's urban skies have darkened over the past 50 years, possibly due to haze resulting from a nine-fold increase in fossil fuel emissions, said researchers from the US Department of Energy, the Associated Press reported.

Researcher: pollution limits sunshine in big cities
Traffic congestion on Beijing's third ring road is shown in this October 22, 2003 file photo. [newsphoto]

The researchers, writing in this month's edition of Geophysical Research Letters, found that the amount of solar radiation measured at more than 500 stations in China fell from 1954 to 2001 despite a decrease in cloud cover.

"Normally, more frequent cloud-free days should be sunnier and brighter but this doesn't happen in our study," said Yun Qian of the energy department's Pacific Northwest National Laboratory in Washington state.

"The pollution (that) resulted from human activity may have created a haze which absorbs and deflects the sun's rays," Qian, the study's lead author, was quoted by the Associated Press as saying.

Air pollution is widespread in China. Antiquated factories billow smoke, many residents still use coal to heat their houses, and a sharp increase in car ownership has bathed the motorways in exhaust fumes.

Using data from more than 500 weather stations in China, American researchers found the amount of sunlight hitting the ground has fallen by 3.7 watts per square yard in each of the last five decades amid a nine-fold increase in fossil fuel emissions.

The cloud cover data used in the study was obtained from the China Meteorological Administration through a bilateral agreement with the U.S. Department of Energy on global and regional climate change, the researchers said.

Herbert G. Fabian, who studies urban pollution and transportation issues for the Asian Development Bank, said the study's conclusion "makes sense" but that more information is needed.

"There really is (an) air pollution problem and a haze problem in China because (of) dust storms and pollution," said Fabian. "But we can't say conclusively that the reduction in sunlight is due to haze."

The study also said haze appears to have masked the impact of global warming by reflecting sunlight back into space and cooling the Earth's surface.

"The haze may have masked the effects of global warming across large parts of China, particularly in the central and eastern regions, where daily high temperatures have actually been decreasing," Qian said. "This may seem like good news, but any success China has in curbing emissions will accelerate the effects of global warming in those areas when the cooling mask is lifted."



Fire kills 5 in Northeast China
Aerobatics show in Hunan
Final rehearsal
  Today's Top News     Top China News
 

Australia, US, Japan praise China for Asia engagement

 

   
 

Banker: China doing its best on flexible yuan

 

   
 

Hopes high for oil pipeline deal

 

   
 

Possibilities of bird flu outbreaks reduced

 

   
 

Milosevic buried after emotional farewell

 

   
 

China considers trade contracts in India

 

   
  EU likely to impose tax on imports of Chinese shoes
   
  Bankers confident about future growth
   
  Curtain to be raised on Year of Russia
   
  Coal output set to reach record high of 2.5b tons
   
  WTO: China should reconsider currency plan
   
  China: Military buildup 'transparent'
   
 
  Go to Another Section  
 
 
  Story Tools  
   
  Related Stories  
   
Giant snake causes traffic jam
   
Beijing unveils four measures to tackle traffic jam
   
Beijing ponders solutions to traffic jams
   
"Deviation" root cause of city traffic jams
   
Germans stuck in traffic have sex on the mind
   
Beijing to raise downtown car parking fees
   
Limit on private cars questioned
   
Pursuing non-harmful economic growth policies
Manufacturers, Exporters, Wholesalers - Global trade starts here.
Advertisement
         
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

    国内成人免费视频| 91在线观看成人| 久久免费电影网| 成人在线综合网| 亚洲男人天堂一区| 欧美日韩精品免费| 国产在线播放一区三区四| 国产日韩欧美综合在线| 91丨国产丨九色丨pron| 午夜av区久久| 久久亚区不卡日本| 97久久精品人人爽人人爽蜜臀| 亚洲成av人综合在线观看| 精品区一区二区| www.久久久久久久久| 亚洲午夜久久久| 精品剧情v国产在线观看在线| 成人av网站在线观看| 午夜精品一区二区三区电影天堂 | 午夜影院久久久| 精品国产免费久久 | 久久综合九色综合欧美98| 99久久免费国产| 免费在线观看一区二区三区| 中文在线一区二区| 欧美日韩国产区一| 国产成人精品一区二区三区四区| 亚洲综合色成人| 精品99一区二区三区| 国产精品乱码人人做人人爱| 欧美在线观看禁18| 国产精品自拍av| 亚洲在线观看免费视频| 久久久久久久久久久电影| 在线欧美日韩精品| 国产一区二区三区黄视频| 亚洲制服丝袜一区| 国产午夜精品美女毛片视频| 欧美人狂配大交3d怪物一区 | 顶级嫩模精品视频在线看| 午夜精品免费在线| 国产精品久久久久久福利一牛影视| 欧美一区二区三区影视| 91婷婷韩国欧美一区二区| 久久99九九99精品| 亚洲国产综合91精品麻豆| 国产喷白浆一区二区三区| 欧美一区二区久久| 色久优优欧美色久优优| 高清beeg欧美| 另类欧美日韩国产在线| 亚洲一级二级在线| 国产精品高潮呻吟久久| 精品999久久久| 制服丝袜激情欧洲亚洲| 99精品热视频| 国产白丝网站精品污在线入口| 人人爽香蕉精品| 亚洲愉拍自拍另类高清精品| 国产精品嫩草影院av蜜臀| 精品欧美一区二区三区精品久久 | 亚洲成av人片在线| 亚洲人成电影网站色mp4| 国产亚洲欧美在线| 精品欧美一区二区三区精品久久| 欧美男人的天堂一二区| 91福利视频在线| 播五月开心婷婷综合| 国产精品一区在线观看乱码| 老司机精品视频在线| 三级影片在线观看欧美日韩一区二区| 亚洲日本欧美天堂| 国产精品国产三级国产aⅴ原创 | 性做久久久久久| 一区二区三区影院| 国产精品久久三| 国产欧美精品日韩区二区麻豆天美| 欧美成人三级在线| 日韩欧美一区在线| 欧美一区二区三区婷婷月色| 欧美唯美清纯偷拍| 日本乱人伦aⅴ精品| 91视频你懂的| 91丨porny丨中文| 91丝袜国产在线播放| 不卡视频一二三四| 粉嫩在线一区二区三区视频| 国产风韵犹存在线视精品| 国产一区视频网站| 国产一区二区福利视频| 精品亚洲aⅴ乱码一区二区三区| 蜜乳av一区二区三区| 青草av.久久免费一区| 三级影片在线观看欧美日韩一区二区| 香蕉影视欧美成人| 日韩精品电影在线观看| 秋霞av亚洲一区二区三| 另类小说欧美激情| 久久99国产精品麻豆| 国产麻豆精品theporn| 国产高清精品在线| 粉嫩av一区二区三区粉嫩| 成人福利在线看| 91在线视频在线| 色综合天天综合网天天狠天天| 亚洲精品久久久蜜桃| 亚洲丝袜精品丝袜在线| 亚洲欧美另类在线| 国产美女主播视频一区| 国产精品18久久久久| 粉嫩嫩av羞羞动漫久久久| 成人黄色小视频| 99精品视频一区二区| 在线免费观看日本一区| 欧美另类z0zxhd电影| 欧美一级理论片| 欧美精品一区二区久久婷婷| 久久久99精品免费观看| 最近日韩中文字幕| 亚洲高清在线视频| 日本在线播放一区二区三区| 激情文学综合插| 成人一区二区视频| 色综合久久88色综合天天免费| 欧美视频精品在线观看| 欧美剧情片在线观看| 日韩精品一区二| 国产亚洲制服色| 亚洲欧美日韩精品久久久久| 午夜精品久久久久久久| 久久精品久久精品| 不卡区在线中文字幕| 欧美日韩在线亚洲一区蜜芽| 欧美成人在线直播| 国产精品理论在线观看| 亚洲一级在线观看| 极品少妇xxxx偷拍精品少妇| 99热99精品| 欧美狂野另类xxxxoooo| 久久精品这里都是精品| 亚洲最大的成人av| 蜜桃视频免费观看一区| 成人免费视频网站在线观看| 欧美色图免费看| xfplay精品久久| 亚洲品质自拍视频| 蜜桃久久久久久久| 99麻豆久久久国产精品免费| 欧美精品国产精品| 日本一二三不卡| 亚洲第一电影网| 国产成人夜色高潮福利影视| 色噜噜狠狠色综合欧洲selulu| 日韩精品一区二区三区蜜臀| 综合分类小说区另类春色亚洲小说欧美| 五月激情综合婷婷| 国产91丝袜在线播放九色| 欧美日韩dvd在线观看| 国产性天天综合网| 亚洲不卡av一区二区三区| 国产成都精品91一区二区三| 9191国产精品| 成人免费在线视频观看| 九色|91porny| 91成人免费在线| 国产日韩亚洲欧美综合| 五月天丁香久久| 91丨porny丨在线| 欧美精品一区二区三区一线天视频| 一区二区日韩电影| 国产精品911| 6080yy午夜一二三区久久| 国产精品久久久久久亚洲毛片 | 一本色道久久综合亚洲aⅴ蜜桃| 精品伦理精品一区| 亚洲一区二区四区蜜桃| 国产成人精品亚洲777人妖| 欧美高清视频一二三区 | 懂色av一区二区三区免费看| 91精品国产欧美一区二区成人| 最新日韩av在线| 国产一区在线精品| 欧美久久久久久蜜桃| 亚洲女同ⅹxx女同tv| 国产mv日韩mv欧美| 精品国产一区二区三区四区四| 亚洲第一福利一区| 色噜噜狠狠成人网p站| 中文字幕欧美区| 韩国精品主播一区二区在线观看 | 色欲综合视频天天天| 国产欧美精品一区| 久久爱www久久做| 欧美精品三级日韩久久| 亚洲综合成人网| av电影在线观看一区| 国产日韩欧美综合一区| 久久精品国产**网站演员| 欧美高清你懂得| 亚洲国产欧美在线|