U.N. aims to reduce mercury levels

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U.N. aims to reduce mercury levels

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U.N. aims to reduce mercury levels

CBSTV Videos 2:01 mins

A new study from the Biodiversity Research Institute in Maine finds that 84 percent of fish have unsafe levels of mercury. That poses a health risk for humans. And, as Tony Guida reports, diplomats will gather in Geneva this week to negotiate a treaty aimed at reducing the mercury threat.

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