Such BS--the implication is that we need to regulate the food supply, how animals are cared for, and how many people can keep (not to mention contract terms), because of a governmental problem.
The problem here is lack of property rights; considering most water is owned by the government, and no private individuals, you get problems like this; privatize the waterways and let people sue for damages and problems like this disappear.
it should be "How Tragedy of the Commons causes Dead Zones".