Lake Tahoe, CA/NV—Lake Tahoe clarity held steady in 2009 for the ninth year in a row, but remains significantly poorer than in previous decades, according to UC Davis scientists who have monitored the lake for more than 40 years.
Lake Tahoe, CA/NV—Lake Tahoe clarity held steady in 2009 for the ninth year in a row, but remains significantly poorer than in previous decades, according to UC Davis scientists who have monitored the lake for more than 40 years.