Living With Climate Change: The cost of extreme heat in the U.S.? 235,000 ER visits and $1B in health-care bills just this summer

An extremely hot June gave way to an even steamier July, with this week setting the record for the steepest global average temperatures.

That means a jump in costly emergency-room visits and other longer-term health impacts that could only worsen as man-made climate change makes temperature extremes more common.

The global average temperature…