A new map points out U.S. rivers most worth protecting
A four-year assessment maps river and stream resilience across the contiguous United States, identifying areas best able to sustain aquatic life as the climate warms and places where targeted repairs could help. Only 6 percent of streams are both healthy and meaningfully protected; another 13 percent are healthy but lack safeguards. Dams are a major source of fragmentation, while pollution and altered flows also constrain rivers. Researchers say the map can guide conservation investment and restoration, but protecting rivers requires addressing impacts upstream, not just safeguarding isolated stretches.
Reporting styleFactual
Evidence-based reporting of a scientific assessment, with limited interpretive language.