RHINELANDER - The National Oceanic and Atmospheric Administration reports this summer was one of the hottest globally on record, and it's becoming a trend. The five warmest June through August periods have all occurred in the last five years.
Retired Rhinelander DNR Water Specialist Tom Jerow said action needs to be taken now on fossil fuel emissions. If nothing is done, Jerow said Wisconsin may feel like a southern state for part of the year.
"Some of the predictions are that are summers in Wisconsin will feel more like St. Louis than they will like Wisconsin," said Jerow.
Winter temperatures in Wisconsin have not changed as much. In Rhinelander, 2014 was the second coldest winter on record. Jerow said this is because warmer ocean temperatures shifts the jetstream closer to arctic air.
"Some people say 'oh my gosh the winters are so terrible,' well its just because this change in the jetstream," said Jerow. "If they went to the arctic they'd find the permafrost melting all over the place."
As temperatures rise, Jerow said cold-water fish like walleye will struggle to survive. Jerow will be speaking at the Climate Rally in Minocqua Friday.
Jerow a member of Wisconsin's Green Fire. It supports the state's conservation legacy by promoting science-based management of natural resources.