Thursday, December 13, 2012

Planetary Thresholds

Nature published this graphic of humanity's deep imprint on the earth's planetary systems in 2009.


Obviously there's bad news there (and it's three years old too... things haven't exactly gotten better.) Still, it is interesting how something like the nitrogen cycle is so far out of whack compared with climate change or global freshwater use, yet gets comparatively little attention in the mainstream.

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