<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          English 中文網(wǎng) 漫畫網(wǎng) 愛新聞iNews 翻譯論壇
          中國網(wǎng)站品牌欄目(頻道)
          當(dāng)前位置: Language Tips > Normal Speed News VOA常速

          Addressing climate change through diet

          [ 2012-04-20 13:14]     字號 [] [] []  
          免費訂閱30天China Daily雙語新聞手機報:移動用戶編輯短信CD至106580009009

          Addressing climate change through diet

          A new study says one of the best ways to curb greenhouse gas emissions is to eat less meat. In fact, the study says meat consumption in the developed should be cut by 50 percent per person by 2050.

          Meat production and consumption are expected to soar by 2050. That's because the global population is projected to grow from the current seven billion to nine billion. But also, the diets of people in many developing countries are changing. Countries with emerging economies are seeing a sharp rise in protein consumption, especially red meat.

          Dr. Eric Davidson said changing how people eat can have a dramatic effect on greenhouse gas emissions.

          "We're not talking about everybody suddenly needing to become a vegetarian. Rather it's kind of reversing the supersize trend and being more mindful of the impacts of the amount of meat and the types of meat, both for the environment and our own health," he said.

          Davidson is the president and senior scientist at the Woods Hole Research Center in Massachusetts.

          Meat, manure and gas

          "If there is a growing demand for meat, which of course there is, that is going to end up requiring use of more nitrogen fertilizer and production of more livestock manure, both of which end up resulting in unintentional releases of various forms of nitrogen to the environment, including nitrates to groundwater and surface water and also greenhouse gases such as nitrous oxide to the atmosphere," he said.

          Addressing climate change through diet

          Davidson looked for ways to ease the effects of climate change that would support an aggressive strategy laid out by the Intergovernmental Panel on Climate Change. In particular, the effects of nitrous oxide, described as the third biggest contributor to climate change after carbon dioxide and methane.

          But while nitrous oxide ranks number three in greenhouse gases, it is considered the most potent. It's much better at absorbing infrared radiation. In other words, the sun's energy passes through the Earth's atmosphere, heats things up and is then released through infrared radiation. But that radiation then hits the greenhouse gases in the atmosphere and goes no further.

          Davidson has a simple analogy.

          "It's sort of the same idea as a parked car. The energy goes through the windshield of a car pretty easily. It's absorbed on the car seat. Gets the car seat hot. Re-radiates out and it cannot escape the windshield on the way out. This infrared radiation cannot escape the windshield and so the inside of the car heats up. The physics is pretty well understood for climate change. I think we'd probably have better acceptance of it if we called it the parked car effect instead of the greenhouse gas effect," he said.

          And nitrous oxide stays in the atmosphere a very long time before breaking down. It can take over 100 years to break down one molecule of the gas. The main sources of nitrous oxide are synthetic nitrogen fertilizers and storage and use of livestock manure.

          Start now

          Davidson says farmers should be given incentives to use fertilizers and manure more judiciously.

          "If we want to meet the most ambitious and optimistic goal of these scenarios of bringing harmful climate change under control, we need to improve the efficiency with which we use fertilizers in agriculture. We need to improve the efficiency of the management of manure. And we also need to consider changes in dietary patterns. And that means hopefully better diets in the developing world and better balanced diets in the developed world," he said.

          Even if it were possible to turn off all harmful greenhouse gas emissions today, he said climate change would continue.

          "That doesn't mean that we shouldn't start the mitigation now because the sooner we start it the more options our children and grandchildren will have in terms of being able to feed themselves and have prosperous lifestyles without environmental degradation," he said.

          Davidson's findings appear in IOP Publishing's Environmental Research Letters.

          nitrous oxide: 一氧化二氮(俗稱笑氣)

          Related stories:

          Glimpsing the future on climate change

          英研究:牲畜吃蒜減少打嗝可抑制全球變暖

          研究:少吃肉既健康又環(huán)保

          Greenhouse gas speeded ice age melting

          (來源:VOA 編輯:旭燕)

           
          中國日報網(wǎng)英語點津版權(quán)說明:凡注明來源為“中國日報網(wǎng)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(xué)習(xí)與研究,如果侵權(quán),請?zhí)峁┌鏅?quán)證明,以便盡快刪除。
           

          關(guān)注和訂閱

          人氣排行

          翻譯服務(wù)

          中國日報網(wǎng)翻譯工作室

          我們提供:媒體、文化、財經(jīng)法律等專業(yè)領(lǐng)域的中英互譯服務(wù)
          電話:010-84883468
          郵件:translate@chinadaily.com.cn
           
           
          主站蜘蛛池模板: 中国少妇人妻xxxxx| 亚洲最大成人av在线天堂网| 99久久精品国产综合婷婷| 日本边添边摸边做边爱| 麻豆果冻国产剧情av在线播放| 欧美亚洲日本国产综合在线美利坚| 深夜精品免费在线观看| 久久人妻少妇偷人精品综合桃色| 国产激情一区二区三区在线| 忘忧草在线社区www中国中文| 人人模人人爽人人喊久久| 国产伦久视频免费观看视频| 中文成人无字幕乱码精品区| 92自拍视频爽啪在线观看| 国产日韩av二区三区| 免费欧洲美女牲交视频| 亚洲综合区激情国产精品| 女人被爽到高潮视频免费国产| 国产精品久久久亚洲456| 日韩美女视频一区二区三区| 人妻少妇精品系列一区二区| 日本激情久久精品人妻热| 成人免费在线播放av| 国产精品v欧美精品∨日韩| 欧美大胆老熟妇乱子伦视频| 另类 专区 欧美 制服| 亚洲色大成成人网站久久| 最近中文字幕在线视频1| 熟妇人妻无码中文字幕老熟妇 | 影音先锋2020色资源网| 国产精品亚洲成在人线| 无套内谢少妇一二三四| 精品人妻一区二区久久| 亚洲精品天堂一区二区| 国产精品久久久久AV| 国产精品国产三级国快看| 国产精品亚洲精品国自产| 国产精品三级国产精品高| 狠狠色丁香婷婷久久综合不卡| 日日摸夜夜添夜夜添国产三级| 少女韩国在线观看完整版免费|