There are some problems with the convention. One issue that has yet
to be settled is the setting of deadlines on the abolition of mercury
use in small-scale gold mining operations. Still, it is significant that
the international community took a step forward to regulate mercury
use.
Both China, which is the world’s largest user and emitter of
mercury, and the United States, which has maintained a cautious stance
toward treaties concerning chemical substances and waste, took part in
the negotiations. If these two countries ratify the convention, it would
be useful in preventing future damage.
http://ajw.asahi.com/article/views/editorial/AJ201310110023
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