Climate change 'threatens' food safety
文章来源: 文章作者: 发布时间:2009-06-20 02:46 字体: [ ]  进入论坛
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China is likely to face inadequate1 food supply by 2030 if the current climate change trend continues, warns a new Greenpeace report released yesterday.

If the emission2 of greenhouse gases (GHG) continues to be high, the impact of climate change - including temperature rises, loss of arable3 land, shortage of water and extreme weather - could reduce China's overall food production by 23 percent by 2050, the report said.

"China's agriculture sector4 is already suffering from the impact of climate change," said Lin Erda, a senior researcher with the Chinese Academy of Agricultural Sciences. For instance, winter wheat grown in the northern part of China has become less resistant5 to the cold because of warmer winters during the past several years.

This has made it more vulnerable to freezing temperatures in early spring and thus reduced productivity, said Lin, who is also one of China's top climate experts.

As much as 50 million hectares of crops in China are threatened by climatic disasters every year, the Greenpeace report says.

China's ability to adapt to such changes is still weak because it lacks state-of-the-art technologies and financial support, Lin said. The country needs "new technologies to solve these problems" and, as a developing nation, needs the help of the developed world to fight the threats of global warming.

There is a huge gap between the developing countries' need for financial support and what the developed countries offer at present, Lin said.

The report, commissioned by Greenpeace and prepared by China's top climate experts and agronomists6, calls for immediate7 action to reduce GHG emissions8 and adopt a more climate-friendly farming system.

The report identifies "ecologically friendly" agriculture as a possible solution for China to feed the world's largest population in a sustainable way. Ecological9 agriculture encourages reduced dependence10 on fertilizers and pesticides11 to maintain soil fertility. It uses biofuel to cut carbon dioxide emission, and helps increase biodiversity in farming to prevent plant diseases.

Compared with the destructive chemical and fossil-energy intensive agriculture, ecological farming can better fight the threats of climate change, Lin said.

Questions:

1. How many millions of hectares of Chinese crops are threatened every year by climatic disasters?

2. What does the report identify as a possible solution for China to feed its population in a sustainable way?

3. When is China likely to face inadequate food supply if the current climate change trend continues?
Answers:

1. 50 million hectares.

2. “Ecologically friendly” agriculture.

3. 2030.



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1 inadequate 2kzyk     
adj.(for,to)不充足的,不适当的
参考例句:
  • The supply is inadequate to meet the demand.供不应求。
  • She was inadequate to the demands that were made on her.她还无力满足对她提出的各项要求。
2 emission vjnz4     
n.发出物,散发物;发出,散发
参考例句:
  • Rigorous measures will be taken to reduce the total pollutant emission.采取严格有力措施,降低污染物排放总量。
  • Finally,the way to effectively control particulate emission is pointed out.最后,指出有效降低颗粒排放的方向。
3 arable vNuyi     
adj.可耕的,适合种植的
参考例句:
  • The terrain changed quickly from arable land to desert.那个地带很快就从耕地变成了沙漠。
  • Do you know how much arable land has been desolated?你知道什么每年有多少土地荒漠化吗?
4 sector yjczYn     
n.部门,部分;防御地段,防区;扇形
参考例句:
  • The export sector will aid the economic recovery. 出口产业将促进经济复苏。
  • The enemy have attacked the British sector.敌人已进攻英国防区。
5 resistant 7Wvxh     
adj.(to)抵抗的,有抵抗力的
参考例句:
  • Many pests are resistant to the insecticide.许多害虫对这种杀虫剂有抵抗力。
  • They imposed their government by force on the resistant population.他们以武力把自己的统治强加在持反抗态度的人民头上。
6 agronomists e693878c2d4809349ce615216db749bd     
n.农(艺)学家( agronomist的名词复数 )
参考例句:
  • Agronomists are concerned with the production of crops for food, feed, and fibre. 农学工作者应学习食物、饲料和纤维作物的生产。 来自辞典例句
  • Agronomists and farmers use the pictures to study crops. 农学家和农民利用图片来研究庄稼。 来自互联网
7 immediate aapxh     
adj.立即的;直接的,最接近的;紧靠的
参考例句:
  • His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
  • We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。
8 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。
9 ecological IrRxX     
adj.生态的,生态学的
参考例句:
  • The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
  • Each animal has its ecological niche.每种动物都有自己的生态位.
10 dependence 3wsx9     
n.依靠,依赖;信任,信赖;隶属
参考例句:
  • Doctors keep trying to break her dependence of the drug.医生们尽力使她戒除毒瘾。
  • He was freed from financial dependence on his parents.他在经济上摆脱了对父母的依赖。
11 pesticides abb0488ed6905584ea91347395a890e8     
n.杀虫剂( pesticide的名词复数 );除害药物
参考例句:
  • vegetables grown without the use of pesticides 未用杀虫剂种植的蔬菜
  • There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧。 来自《简明英汉词典》
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