There's a worrisome problem with electric cars that no one's talking about: The Cold.

The Business Insider reports electric cars don't work so well in the cold:

In 2014, the AAA Automotive Research Center in Southern California published the results of its study that tested how the driving range of three all-electric vehicles (EVs) varied with temperature. At a steady 20 degrees F, the all-electric vehicles traveled a shocking 57% shorter distance on a single charge than they did at 75 degrees F. On average, an EV's batteries transported drivers 105 miles at 75 degrees F, but only 43 miles at 20 degrees F, AAA reported.

What the green energy people forget to tell you.