关注微信领¥50

百门课程¥0元


50万+已关注

科学美国人60秒:抗嗝化合物减少奶牛甲烷排放-托福听力下载

2016-11-25 12:27:57来源:科学美国人60秒

点击查看>>科学美国人60秒音频:抗嗝化合物减少奶牛甲烷排放

  科学美国人60秒中英文翻译:抗嗝化合物减少奶牛甲烷排放

  科学美国人60秒英文文本

  The global population is now nearly seven and a half billion.

  And that's just humans.

  Because our planet is also home to one-and-a-half-billion cows, another billion sheep, and a billion goats.

  Their combined belches account for a full fifth of the world's methane emissions—and methane is about 30 times more potent at trapping heat than CO2.

  But those methane emissions might get cut—by feeding the grazers something called 3-nitro oxypropanol.

  "I can tell you, they like it.

  No rejection at all."

  Maik Kindermann, an organic chemist at DSM Nutritional Products in Switzerland.

  Liking it, in the cow world, he says basically means they'll still gobble up their food, even with this stuff mixed in.

  Kindermann's company developed the additive a few years back.

  And it only targets those methane-belching microbes, while leaving the rest of the microbiome untouched.

  The result?

  A 30 percent decrease in methane emissions.

  The study is in the Proceedings of the National Academy of Sciences.

  Kindermann says he thinks the compound could be a win-win for the planet—and the animals.

  "You know the methane is kind of a waste product.

  And this energy, instead of losing it for the animal, it can be reused for the animal in terms of performance, and at the same time we are doing something for greenhouse gas emission and climate change."

  The product's not on the market yet—toxicology tests are ongoing.

  But the hope is that it might take some of the heat off of beef.

  中文翻译请点击下一页

为你特别匹配的托福超值课程,快速提分先人一步!
  • 新东方托福1月公益课(第1期)

    新东方托福1月公益课(第1期)

    特点1天1节公益课,给2019来点托福备考新鲜货!

    课时:10小时

    查看详情
  • 【活动价】新东方托福名师在线一对一(体验课)

    【活动价】新东方托福名师在线一对一(体验课)

    适合人群:想体验新东方在线致赢托福1对1辅导冲分课程的同学

    体验课时:30分钟

    查看详情
  • 大学生旗舰直达班 (冲110分)

    【知心托福】大学生旗舰直达班 (冲110分)

    适合人群:托福目标分数110分!

    课时:343

    查看详情
  • 大学生旗舰直达班 (冲100分)

    【知心托福】大学生旗舰直达班 (冲110分)

    适合人群:托福目标分数100分!

    课时:331

    查看详情
  • 大学生旗舰直达班 (冲90分)

    【知心托福】大学生旗舰直达班 (冲90分)

    适合人群:托福目标分数90分!

    课时:310

    查看详情
全部课程>>
单项突破
直播课堂

更多托福课程
新东方25年教学经验沉淀
托福考生必修课
托福考生,高效提分,安心之选

查看详情>>
更多>>
更多课程>>
更多>>
更多内容
更多>>
更多公开课>>
更多>>
更多课程>>