New research reveals that many lakes in the continental United States are becoming "murkier, with potentially negative consequences for water quality and aquatic life. In the 5 years between 2007 and 2012, the dominant lake type in the United States shifted from clear, blue lakes to greenish-brown

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New research reveals that many lakes in the continental United States are becoming "murkier, with potentially negative consequences for water quality and aquatic life. In the 5 years between 2007 and 2012, the dominant lake type in the United States shifted from clear, blue lakes to greenish-brown