As summer arrives, people are turning on air conditioners in most of the U.S. But if you’re like me, you always feel a little guilty about that. Past generations managed without air conditioning – do ...

Johanna Mathieu works for the University of Michigan. She has received funding from the National Science Foundation, Department of Energy, ARPA-E, and the Alfred P. Sloan Foundation. She is affiliated ...

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As companies look to build projects that consume more power than cities, the state’s grid manager is trying to plan how to ...