Although it's tempting to turn every piece of news about environmental science into a dystopian scenario, dire predictions are not always warranted. Today the U.S. government released the results of a 20-year study of contaminants in the coastal regions of that country, and found that environmental laws enacted in the 1970s had significantly reduced the amounts of pesticides and industrial chemicals in the water. So sometimes legislation can actually change the future. The report warns that other kinds of contaminants still need to be curbed, such as oil-related waste from cars and ships. There's a very readable version of the report here, or you can check out a summary on Science Daily.

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