Too hot to sleep? New report says climate change causing more hot nights in Wisconsin

As the world heats up, a recent report finds summer nights are warming more than days across the globe — and even cooler states like Wisconsin are seeing more tropical nights.

The report from Climate Central, an independent group of scientists, examined the number of days where the lowest nighttime temperatures exceeded 20 and 25 degrees Celsius (68 and 77 degrees Fahrenheit) through the lens of global warming. The Centers for Disease Control and Prevention recommends keeping room temperatures around 68 degrees for a good night’s rest.

In Wisconsin, eight cities saw anywhere from 92 to 138 additional warmer nights in the last decade than they would have seen without human-induced climate change. On average, the cities ranged from between nine to 14 more hot nights per year.