Climate change may be spiking mercury in Yukon rivers: study

Vancouver Sun: The massive Yukon River Basin has mercury levels vastly higher than many other comparable river bodies, the U.S. Geological Survey said this week, with release from thawing permafrost singled out as the prime suspected reason. A five-year sampling shows the basin, which is roughly twice the size of California, has mercury levels 32 times that of some other rivers included in the study, published this week in the journal Environmental Science and Technology. One USGS researcher, however, said......

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