This plant (left), found along the slopes of Mount Everest, grows in individual layers (right) that have been used to understand how atmospheric mercury levels have changed in the past 40 years.
The melting of permafrost in the Arctic could result in toxic mercury leaching into the waters of Alaskan rivers, putting millions of people at risk. This "giant mercury bomb" lurks within the soils ...
This plant (left), found along the slopes of Mount Everest, grows in individual layers (right) that have been used to understand how atmospheric mercury levels have changed in the past 40 years. Image ...
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