The water is clearer, the underwater grasses are coming back and so are the oysters, if only incrementally, according to the Chesapeake Bay Foundation’s latest report on America’s largest estuary.
Pollution is declining and the dead zones are shrinking. And that’s all to the good. But two of the bay’s iconic species—crabs and rockfish—are in trouble. And the scores for other indicators, such as wetlands, toxics and nitrogen pollution did not change.