<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
          USEUROPEAFRICAASIA 中文雙語Fran?ais
          Home / World

          Science has bigger say in GM food

          By Shenggen Fan | China Daily | Updated: 2013-10-29 07:18

          Whether genetically modified foods can help eradicate food insecurity and poverty has been the subject of contentious and polarizing debate.

          The backdrop to this debate is a global agricultural system that is facing increasing challenges from rising climatic variability, population growth, urbanization, and natural resource depletion. According to the Food and Agriculture Organization, food production needs to increase by 60 percent by 2050 in order to feed 9 billion plus people. Scientists and policymakers alike are searching for innovative ways to ensure sufficient access to nutritious food, today and for generations to come. Unlike previous science-based initiatives to raise productivity in the agricultural sector (such as the Green Revolution), the potential of GM crops to combat food security and poverty challenges is muddled in hotly contested discussions.

          The considerable expansion of GM crop varieties worldwide over the last two decades is indisputable. The total area devoted to GM crops has increased 100-fold from 1.7 million hectares in 1996 to 170 million hectares in 2012. Developing countries now grow more GM crops than developed countries (in terms of area), largely driven by Brazil's recent fast-paced adoption of GM crops. China is home to approximately 4 percent of the total global area devoted to GM crops. Soybeans, maize, cotton, and canola dominate GM crops globally, whereas China's focus is on cotton, papaya, and poplar.

          Science has bigger say in GM food

          Today's Top News

          Editor's picks

          Most Viewed

          Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
          License for publishing multimedia online 0108263

          Registration Number: 130349
          FOLLOW US
          主站蜘蛛池模板: 女人下边被添全过视频的网址| 性动态图无遮挡试看30秒| 99久久久国产精品免费无卡顿| 亚洲国产一区二区精品专| 国内自拍视频一区二区三区 | 国产系列高清精品第一页| 成人资源网亚洲精品在线| 人妻无码中文字幕| 亚洲av无码牛牛影视在线二区| 无码伊人久久大杳蕉中文无码| 亚洲精品在线第一页| 成人无码午夜在线观看| 成人内射国产免费观看 | 国产蜜臀在线一区二区三区| 久久精品伊人波多野结衣| 国产婷婷在线精品综合| 国产成人亚洲欧美二区综合| a级毛片视频免费观看| 久久精品无码免费不卡| 中文字幕亚洲国产精品| 国产精品国产高清国产专区| 成人午夜视频一区二区无码| 黄色大全免费看国产精品| 亚洲乱码精品中文字幕| 久久久精品人妻一区二区三区| 野外做受三级视频| 亚洲情综合五月天| 免费看女人与善牲交| 宅宅少妇无码| 日韩国产成人精品视频| 国产黄色大片一区精品| 91中文字幕一区在线| 曰韩精品无码一区二区三区视频| 精品久久丝袜熟女一二三| 国产成人无码A在线观看不卡| 亚洲欧洲久久激情久av| 老司机精品影院一区二区三区| 日韩不卡在线观看视频不卡| 国产激情艳情在线看视频| 人人爽人人爽人人片a免费| 制服丝袜美腿一区二区|