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Gates of the Arctic National Park, Alaska. Plants on the Arctic tundra absorb mercury from the air, then transfer it to soil when they die. Paxson Woelber

Mercury from industrialized nations is polluting the Arctic – here’s how it gets there

How do mercury emissions from industrialized countries reach the remote Arctic? Recent research shows that plants on the tundra absorb mercury vapor through their leaves, then pass it into soil.
A baby plays with blocks spelling out one of the most famous formulas in history. vchal/From

Is lead in the US food supply decreasing our IQ?

A new report from the Environmental Defense Fund raises concerns about lead in our food supply. Here are some things you should consider.
The biggest source of mercury in the U.S. continues to be coal power plants. booleansplit/flickr

Are tighter EPA controls on mercury pollution worth it?

Politicians rail against the EPA, but economic analysis shows the health benefits of mercury controls – including both higher IQ and heart health – are worth billions of dollars a year.

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