2011年11月22日 星期二

Aletsch glacier, the Jungfrau in August 2011

(photo ©2011 Ellen Wallace)
GenevaLunch » Rate of increase of nitrous oxide in atmosphere speeding up
http://genevalunch.com/blog/2011/11/21/rate-of-increase-of-nitrous-oxide-in-atmosphere-speeding-up/
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