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After recent hot weather and with more on the way, air conditioners and fans are taxing Wisconsin’s electrical grid. It’s a good thing the state is slowly but surely moving toward renewable energy, despite resistance from top elected officials.

More than half of Wisconsin’s electricity comes from coal, and a big share of the rest is natural gas. When we ramp up consumption, we spew more greenhouse gases into the atmosphere, contributing to climate change. That will mean hotter days in the future.

Granted, Wisconsin’s share of greenhouse gas emissions is small in the global climate. We could stop burning fossil fuels entirely, and it wouldn’t come close to fixing the problem. But that misses the point. Climate change is the result of many such small greenhouse gas contributions that add up to something terrible. So Wisconsin must reduce emissions along with everyone else.