Restoring rivers to their free-flowing state promises a host of environmental benefits, but contaminated sediments may cloud the picture.
pollution
Posted inResearch Spotlights
Past Phosphorus Runoff Causes Present Oxygen Depletion in Lakes
Sediment cores show how phosphorus pollution in the 1950s led to current, inherited hypoxia in lakes in the Alps.
Posted inNews
Miners Left a Pollution Trail in the Great Lakes 6000 Years Ago
Scientists find evidence of ancient copper mining in polluted lake sediments from Isle Royale National Park.