Mercury released by permafrost thaw puts Yukon River fish at risk, a new study finds
Fish could be unsafe to eat by 2050 and mercury in the river could double by century's end, if emissions aren't curbed.
ANCHORAGE — If carbon emissions continue at current rates, so much mercury will leach from thawing permafrost that fish in the Yukon River could become dangerous to eat within a few decades, according to a study published Wednesday in the journal Nature Communications.
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