FleaFlickr02,
I agree with your statement that the oceans are a problem and lack of nutrients in the watersheds are a problem. ( and harvest is also a problem)

I think we can all see that without some form of nutrient enhancement in both those places the system will collapse. you can't take the trees, and the fish and the deer, and the mushrooms and the berries from the land and not replace the nutrients that they will provide when dead. the question is where is the line between pollution and fertilizer? and then we have to figure out where that line is for the ocean also...

my concern is I do not see anyone working on those questions yet.