Scientists have identified the two biggest reasons that once-pristine rivers across the Arctic are growing cloudy with toxic orange iron particles that smother insects and suffocate fish.
A new study published in Communications Earth & Environment builds on earlier research documenting widespread contamination in Alaska’s Brooks Range. As the climate warms, a layer of Arctic soil that had been frozen for millennia has begun to thaw. Previous studies suggested that thawing permafrost was the ultimate cause of the damage. This new study proves that beyond a shadow of a doubt.
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