FILE - In this Oct. 10, 2013 file photo Swiss Environment and Transport Minister, Doris Leuthard, center, Japan's Liberal Democratic Party's senior lawmaker Nobuteru Ishihara, left, and UN Environment... more 
FILE - In this Oct. 10, 2013 file photo Swiss Environment and Transport Minister, Doris Leuthard, center, Japan's Liberal Democratic Party's senior lawmaker Nobuteru Ishihara, left, and UN Environment Program Executive Director Achim Steiner, right, pose for photos at the Minamata Convention on Mercury in Kumamoto, southern Japan. Steiner says Thursday, Oct. 17, 2013, the Minamata Convention on Mercury, which was formally adopted as international law last week, sends “a very clear signal” that the use of mercury in industrial processes, cosmetics and medical equipment is essentially over. (AP Photo/Kyodo News, File) JAPAN OUT, MANDATORY CREDIT less 
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Associated Press | Photo By Kyodo News, File
Thu, Oct 17, 2013 2:44 PM EDT