CARSON CITY, Nev. (AP) - Researchers at Lake Tahoe say the
lake's famed clarity improved more than 4 feet last year from 2010.
A report released Wednesday by the Tahoe Environmental Research
Center says the average annual clarity of the lake was 68.9 feet.
That's a 4 ½ foot improvement over 2010, when the average clarity
levels were the second worst on record.
The report also notes that winter clarity last year continued to
show steady improvement. But the clarity of the lake in summer
months continued to decline as it has since the late 1960s, when
Last summer's clarity average of 51 ½ feet was the second worst
on record. Scientists believe it could be due to last year's heavy
snowpack and late spring snowmelt that washed sediment into the
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