http://www.timescall.com/longmont-local-news/ci_32380167?source=AP

A nearly four-decade water quality study led by a University of Colorado professor at Lake Dillon in Summit County has found that its surface temperature has warmed by almost 5 degrees Fahrenheit during that time.

Researchers at CU's Cooperative Institute for Research in Environmental Sciences Center for Limnology have just published a study, launched in 1981, which concluded that the lake's rapid warming and its lack of ecological response to that warming are explained by its high elevation.