Lake Tahoe's clarity improved dramatically over past year

The famed cobalt blue waters of Lake Tahoe became more clear last year, gaining 10 feet in visibility from the year before, according to a new study released Thursday by scientists at the University of California, Davis.

Clear lakes disguise impaired water quality

Looks can be deceiving. Look at a hundred lakes in the agricultural heartland of the United States and you will likely see green lakes surrounded by green fields. The nitrogen and phosphorus in agricultural fertilizers that ...

How one man's shoes help NASA communicate water clarity issues

Wearing white sneakers, a cowboy hat and overalls, Bernie Fowler walks into Maryland's Patuxent River every June to see how deep he can go and still see the tops of his shoes. As a young man he could see his feet on the river ...

Long-term eelgrass loss due to joint effects of shade, heat

A new study led by researchers at William & Mary's Virginia Institute of Marine Science links a long-term decline in Chesapeake Bay's eelgrass beds to both deteriorating water quality and rising summertime temperatures. It ...

Report finds improvements in Chesapeake Bay's overall health

Water clarity in the Chesapeake Bay is the best it's been in decades, and native rockfish, oyster and blue crab populations are rebounding as the overall health of the nation's largest estuary improves, a report released ...

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