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Although Lake Tahoe is going through a natural aging process, slowly filling in with sediments like other lakes, additional amounts are washed into the lake due to human activity, such as when slopes are cleared for construction. Each sediment particle carries nutrients that stimulate algae growth and have already begun to cloud that famous clear blue water. In fact, in the 1960s, researchers were able to see approximately 100 feet into the lake, and data suggests that the lake is currently losing approximately one foot of clarity each year!
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