Coal rescues U.S. power grid during Polar Vortex
By Terry Jarrett Guest columnist

Another winter, another cold snap. Right now, much of the United States is feeling the chill of a brutal “Polar Vortex.” And northern states like North Dakota and Minnesota are seeing night-time temperatures drop below zero degrees Fahrenheit. In fact, Duluth is currently chasing a record for the coldest sustained weather, set way back in 1912. Click here to download the article.

Thanks for the share, KE!