http://arstechnica.com/science/news/2008/08/evidence-mounts-...
Over 90 percent of large predatory fish have been wiped out, the coral
reefs that are home to areas of biodiversity that rivals the Amazon
are dying, and the North Sea has been practically denuded of life.
Shellfish populations that were already heavily fished have been
unable to recover thanks to eutrophication and the spread of dead
zones, not to mention seabed trawling.
Those are hard facts. Since the biosphere is a very complex system it's impossible to prove without doubt any theory of causes. But you have to be incredibly insane to deny it's related to humanity's irresponsible pollution.[I expect, yet again, a rain of down-votes of disagreement from HN's army of right-wingers who cant write a good argument. Go ahead.]