废弃牛奶能产生大量温室气体
文章来源:未知 文章作者:enread 发布时间:2012-05-15 06:17 字体: [ ]  进入论坛
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Milk poured down Britain's kitchen sinks each year creates a carbon footprint equivalent to thousands of car exhaust emissions1, research shows. Scientists say the 360,000 tonnes of milk wasted in the UK each year creates greenhouse gas emissions equivalent to 100,000 tonnes of CO2. The study by the University of Edinburgh says this is the same as is emitted by about 20,000 cars annually2.

The research identifies ways that consumers could also help curb3 greenhouse gas emissions -- by reducing the amount of food they buy, serve and waste. They also suggest the food industry could reduce emissions by seeking more efficient ways to use fertilizers.

Researchers also say halving4 the amount of chicken consumed in the UK and other developed countries to levels eaten in Japan could cut greenhouse gas emissions equivalent to taking 10 million cars off the road.

Figures show that if average chicken consumption in developed countries fell from the current level of 26kg each per year to the Japanese average of about 12kg each by 2020, global emissions from poultry5(家禽) would fall below current levels, despite increased output from the developing world. This would cut the predicted global output of nitrous oxide6, a key greenhouse gas, from this source by almost 20 per cent, based on current growth rates.

Demand for food, particularly meat, is expected to increase over the next few decades as the world's population continues to grow and emerging countries consume more.

Agriculture is the biggest source of nitrous oxide, a powerful greenhouse gas that is emitted by soil and fertilizers. Producing meat produces more emissions than growing crops, as large amounts of cereals(谷类) are grown to feed livestock7.

Researchers arrived at their findings by examining data for global agricultural production of greenhouse gases together with consumption of food in various regions of the world. The study, carried out in collaboration8 with the University of Aberdeen and partners in Europe and the US, was published in Nature Climate Change.

Dr David Reay of the University of Edinburgh's School of GeoSciences, who led the study, said: "Eating less meat and wasting less food can play a big part in helping9 to keep a lid on greenhouse gas emissions as the world's population increases."



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1 emissions 1a87f8769eb755734e056efecb5e2da9     
排放物( emission的名词复数 ); 散发物(尤指气体)
参考例句:
  • Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
2 annually VzYzNO     
adv.一年一次,每年
参考例句:
  • Many migratory birds visit this lake annually.许多候鸟每年到这个湖上作短期逗留。
  • They celebrate their wedding anniversary annually.他们每年庆祝一番结婚纪念日。
3 curb LmRyy     
n.场外证券市场,场外交易;vt.制止,抑制
参考例句:
  • I could not curb my anger.我按捺不住我的愤怒。
  • You must curb your daughter when you are in church.你在教堂时必须管住你的女儿。
4 halving c6f26b86dcde43d12ca22a6b8a0bba9a     
n.对分,二等分,减半[航空、航海]等分v.把…分成两半( halve的现在分词 );把…减半;对分;平摊
参考例句:
  • You searched those halving your salary cut your enthusiasm. 你呈现,薪水减半降低了你的任务热情。 来自互联网
  • Halving the repeater spacing made it possible to quadruple the bandwidth. 把增音机间隔缩小一半,就能使带宽增加三倍。 来自互联网
5 poultry GPQxh     
n.家禽,禽肉
参考例句:
  • There is not much poultry in the shops. 商店里禽肉不太多。
  • What do you feed the poultry on? 你们用什么饲料喂养家禽?
6 oxide K4dz8     
n.氧化物
参考例句:
  • Oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
  • How can you get rid of this oxide coating?你们该怎样除去这些氧化皮?
7 livestock c0Wx1     
n.家畜,牲畜
参考例句:
  • Both men and livestock are flourishing.人畜两旺。
  • The heavy rains and flooding killed scores of livestock.暴雨和大水淹死了许多牲口。
8 collaboration bW7yD     
n.合作,协作;勾结
参考例句:
  • The two companies are working in close collaboration each other.这两家公司密切合作。
  • He was shot for collaboration with the enemy.他因通敌而被枪毙了。
9 helping 2rGzDc     
n.食物的一份&adj.帮助人的,辅助的
参考例句:
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
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