由于水井枯竭,全球粮食供应面临威胁
Wells are drying up and underwater tables falling so fast in the Middle East and parts of India,China and the US that food supplies are seriously threatened,one of the world's leading resource analysts has wamed.
In a major new essay Lester Brown,head of the Earth Policy Institute in Washington,claims that 18 countries,together containing half the world's people,are now overpumping their underground water tables to the point — known as "peak water" — where they are not replenishing1 and where harvests are getting smaller each year.
全球粮食、面临威胁、粮食供应
F323.7;F724.721;K2
2014-06-11（万方平台首次上网日期，不代表论文的发表时间）
共2页
20-21
