This is great news, but people should understand that this is largely being driven by fracking, not renewables, so it&#x27;s not without environmental consequence.<p>(Fracking lowered the price of natural gas in the US tremendously, which has made it more cost effective compared to coal.)<p>Also, as the US moves away from coal and towards natural gas, we haven&#x27;t exactly left our coal in the ground -- we&#x27;ve just increased exports so it is consumed abroad.