Some progress made in Lake Tahoe clarity
SOUTH LAKE TAHOE, Calif. — Lake Tahoe clarity improved in 2011, but overall has remained nearly stable since 2000, according to UC Davis scientists who study the lake.
Data released today by the UC Davis Tahoe Environmental Research Center and the Tahoe Regional Planning Agency reported the average annual clarity level for 2011 at 68.9 feet, a 4.5-foot improvement over 2010, when average clarity levels were the second-worst on record.
Winter clarity last year continued a decade-long pattern of improvement, while summer clarity continued to decline at the same rate that it has since the late 1960s, when monitoring began.
Average annual clarity ... www.tahoedailytribune.com/article/20120229/ARCHIVES01/120229838/