One of the biggest ironies this year is the transition from fossil fuel generation to green energy has created a global energy crisis that is forcing the U.S., among many other countries, to restart coal-fired power plants ahead of the Northern Hemisphere winter. Coal is roaring back this fall but supplies are not catching up with demand. According to Bloomberg, US coal supplies dropped to 84.3 million tons in August, the lowest level since 1997. {chart} As of August, about a quarter of all US power generation was derived from coal. As winter approaches, coal-fired power plants will become a more significant ... (full story)