Conserving just 35% of the nation's waterways could sustain freshwater biodiversity
By evaluating the health of waterways across the U.S., researchers have identified a network encompassing about one-third of rivers and streams that, if conserved and restored, could sustain the nation's freshwater biodiversity in the face of habitat degradation and climate change. Mark Anderson of The Nature Conservancy, U.S., led the new study, published Sept. 16, 2026, in the journal PLOS One.
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