Posted by Jonathan Adler:
U.S. Clears Way for Mercury Treaty:
http://volokh.com/archives/archive_2009_02_15-2009_02_21.shtml#1235227161


   The United States has [1]dropped its opposition to an international
   treaty limiting mercury emissions, prompting agreement by over 140
   nations to negotiate such a treaty.

     Formal negotiations will begin late this year, and U.N. officials
     hope to conclude the talks by 2013. The White House issued a
     statement saying a future treaty would use "a combination of
     legally binding and voluntary commitments" to cut mercury emissions
     from industrial processes as well as coal-fired power plants and
     small-scale mining. . . .

     A range of industrial activities, including the production of
     chlorine and the burning of coal, release mercury, which then falls
     to the earth and the sea in precipitation. The neurotoxin
     accumulates in fish and marine mammals in the form of
     methylmercury, which poses a threat to humans when consumed.

     While the majority of mercury exposure in the United States stems
     from non-domestic emissions, all 50 states have issued mercury
     contamination advisories for fish in their waters. Marine mammals
     eaten by native Arctic peoples, such as pilot and beluga whales,
     have mercury concentrations that exceed recommended levels.

References

   1. 
http://www.washingtonpost.com/wp-dyn/content/article/2009/02/20/AR2009022003378.html?hpid=topnews

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