Climate change in Wisconsin encompasses the effects of climate change attributed to man-made increases in atmospheric carbon dioxide, in the U.S. state of Wisconsin including the environmental, economic, and social impacts.
According to the United States Environmental Protection Agency, "Wisconsin's climate is changing. In the past century, most of the state has warmed about two degrees (F). Heavy rainstorms are becoming more frequent, and ice cover on the Great Lakes is forming later or melting sooner. In the coming decades, the state will have more extremely hot days, which may harm public health in urban areas and corn harvests in rural areas".[1]