Zippy points us to a fascinating post by Lawrence Gage at Real Physics which, in Zip's words, demonstrates that there "is a genuine, man-made, existential threat to the environment and our very survival as a species..." This may not be an exaggeration. It's all about fish and people and sex, especially the manner in which the anonymous variety of that latter thing "can deplete a woman." Trust me, it's all of a piece.
Update: Kevin Jones expands our horizons, as regards his own environs. (Yeah, I rhymed it on purpose.)