Fishing had a greater impact on most fish populations studied in Wisconsin and Minnesota than a warming climate. Researchers analyzed eight fish species, including walleye. (Photo courtesy of the Wisconsin Department of Natural Resources, via Wisconsin Public Radio)

A Wisconsin Department of Natural Resources worker handles a walleye in the field. (WDNR Fisheries Management photo, via Wisconsin Public Radio)

Fishing had a greater impact on most fish populations studied in Wisconsin and Minnesota than a warming climate. Researchers analyzed eight fish species, including walleye. (Photo courtesy of the Wisconsin Department of Natural Resources, via Wisconsin Public Radio)

Despite worries over rising temperatures, it turns out anglers have a greater effect on fish populations than global w

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