亚洲最大福利网站_4hu四虎永久网址_麻豆国产原创_国产成人av一区二区

Global diets get more similar in threat to food security: study
date:Mar 04, 2014
also raises vulnerability to pests and diseases that might gain because of climate change.

Overall, diets had become 36 percent more similar in the past 50 years, judged by factors such as shifts in consumption of more than 50 crops for calories and protein, the study said.

The convergence continues with no indication of slowing, according to the study in the U.S. journal Proceedings of the National Academy of Sciences that included the Global Crop Diversity Trust, Wageningen University in the

12/24 16:45