日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

您現(xiàn)在的位置: Language Tips> Audio & Video> Special Speed News  
   
 





 
Climate change meets American agriculture
[ 2008-06-17 09:56 ]

Download

This is the VOA Special English Agriculture Report.

A government report says climate change is already affecting American agriculture.

The new report is from the Climate Change Science Program, which brings together the research efforts of thirteen federal agencies. President George Bush launched the program six years ago.

Here are some of the findings by scientists:

The growing season has increased by ten to fourteen days in northern parts of the United States over the last nineteen years.

Much of the East and South now get more rain than a century ago. But the report says there is some evidence of increased drought conditions in the West and Southwest. Western states have less snow and ice on the mountains and earlier melting in the spring.

Grain and oilseed crops are likely to develop faster with increased carbon dioxide in the atmosphere. But higher temperatures will increase the risk of crop failures.

Also, horticultural crops such as tomatoes, onions and fruit are more easily affected by climate change than grains and oilseed crops.

Fewer animals will die during warmers winters, but greater numbers will die during hotter summers. And temperature extremes reduce animal production of meat or milk products.

Forests in the West, the Southwest and Alaska already have increases in fires, insect outbreaks and dead trees. But young forests on good soil will be more productive because of increased carbon dioxide levels.

At the same time, invasive plants will also grow faster and are likely to move northward. Recent research also suggests that weeds might get harder to kill with glyphosate, the most widely used plant killer in the United States.

The Department of Agriculture was the lead agency for the new report. Thirty-eight scientists from universities, national laboratories, nongovernmental organizations and federal service wrote it. They considered more than one thousand scientific publications.

The report was the strongest statement yet by the Bush administration that human activity is the main cause of climate change in the last fifty years. Carbon dioxide from the burning of oil, natural gas and coal is the main gas blamed for trapping heat in the atmosphere.

The report says warming is very likely to continue in the United States during the next twenty-five to fifty years. And it says this is so even if future greenhouse-gas emissions are reduced.

And that's the VOA Special English Agriculture Report, written by Jerilyn Watson. I'm Bob Doughty.

(Source: VOA 英語點津姍姍編輯)

 
英語點津版權(quán)說明:凡注明來源為“英語點津:XXX(署名)”的原創(chuàng)作品,除與中國日報網(wǎng)簽署英語點津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請與010-84883631聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學習與研究,如果侵權(quán),請?zhí)峁┌鏅?quán)證明,以便盡快刪除。
相關(guān)文章 Related Story
 
 
 
本頻道最新推薦
 
Walking in the US first lady's shoes
“準確無誤”如何表達
英國新晉超女蘇珊大媽改頭換面
豬流感 swine flu
你有l(wèi)ottery mentality嗎
翻吧推薦
 
論壇熱貼
 
別亂扔垃圾。怎么譯這個亂字呀?
橘子,橙子用英文怎么區(qū)分?
看Gossip Girl學英語
端午節(jié)怎么翻譯?
母親,您在天堂還好嗎?

 

主站蜘蛛池模板: 欧美一级淫片bbb一84 | 日本天堂网在线 | 不卡精品视频 | 黄色国产视频 | 91久久国产综合久久91精品网站 | 日韩在线观看视频一区二区 | 欧美视频一二区 | 日本女优色图 | 精品久久国产字幕高潮 | 欧洲精品视频在线 | 丁香六月婷婷激情 | 偷拍亚洲欧美 | 中文字幕五月 | 色婷婷九月 | 国产综合影院 | 亚洲综合色婷婷 | 一区三区视频 | 怡红院综合网 | 国产亚洲久久 | 国产小视频免费观看 | 国产精品欧美激情在线 | 成人观看视频 | 国产精品久久精品 | 亚洲天天看 | www久久久久 | 欧美日本在线观看 | 国产麻豆传媒 | 性做爰过程免费看 | 99精品一区二区三区 | 国产精品国色综合久久 | 亚洲精品乱码 | 国产精品自拍99 | www日韩在线 | 加勒比久久综合 | 男人的天堂视频网站 | 日韩精品1区| 午夜视频在线观看一区 | 色网在线 | 五月婷婷六月丁香综合 | 国产一级片免费在线观看 | 亚洲女人毛茸茸 |