Sentinel lakes monitored for effects of climate change

Minnesota Public Radio: State and federal researchers are taking a very detailed look at some Minnesota lakes to monitor the effects of climate change and pollution. The so-called super sentinel lakes that will act as an early detection system for poor conditions include Lake Carlos, near Alexandria, Elk Lake in Itasca State Park and Trout Lake in Cook County. Because of their cold deep water, the three lakes have been designated super sentinels. There are a total of 24 sentinel lakes scattered across ......

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