By some measures, Clear Lake is thriving. It holds more fish per acre than any other lake in the United States and supports a vast population of birds and other wildlife. But, by another measure that has defined the lake for decades, Clear Lake is deeply out of balance. Every year, harmful algal blooms take over the lake’s surface, producing toxins that can make people and animals who use the lake sick. The blooms shut down recreational activities and strain local tourism. But now, a group of scientists believe they have found a way to restore Clear Lake’s water quality by tackling phosphorus, one of the biggest drivers of the harmful algal blooms.

Other water quality news:

• Bay City News Service: Suisun Bay sewage spill nets record fine of $5.6 million
• ABC7 (Denver, Colo.): Colorado state lawmakers want to expand water quality testing program in schools