好好享用今天的食物，数十年后要改观了！

namlow

.....Last week, the ratio of carbon dioxide in the atmosphere soared to the highest daily average ever recorded by an air monitor station at Mauna Loa in Hawaii — nearly 400 parts per million (ppm), said John Ewald, a spokesman for the National Oceanic and Atmospheric Association, who called it "an extremely important milestone." When that gauge was installed in 1958, the observatory measured a CO2 concentration of 313 ppm. The number means there were 313 molecules of carbon dioxide in the air for every 1 million molecules of air.......
http://t.nbcnews.com/business/food-supply-under-assault-climate-heats-1C9909477
好好享用今天的食物，数十年后要改观了！

Food supply under assault as climate heats up - NBC News.com
t.nbcnews.com
American eaters, let’s talk about the birds and the bees: The U.S. food supply – from chickens injected with arsenic to dying bee...

namlow

namlow 发表于 2013-5-17 05:25
.....Last week, the ratio of carbon dioxide in the atmosphere soared to the highest daily average ev ...

大意为数十年后很多种今天能享用的食物产量大减。