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Thanks to a ‘natural clean-up crew’ of zooplankton, the large, freshwater alpine lake is looking especially pristine

Sierra nevadaUnited statesLos angelesGregory thomasJesse pattersonGeoffrey schladowHeather waldmanRyan millerAnita chabriaSarah kutaTony barbozaUniversity of californiaLeague to save lake tahoeTahoe environmental research centerLake tahoeBrant allen