Extreme heat means two-thirds of North America could suffer blackouts this summer

The heatwave leaving tens of millions of Americans in sweltering temperatures will test the power grid’s ability to keep the lights on.

​CNN.com – RSS Channel The heatwave leaving tens of millions of Americans in sweltering temperatures will test the power grid’s ability to keep the lights on. 

​Read More The heatwave leaving tens of millions of Americans in sweltering temperatures will test the power grid’s ability to keep the lights on.