Dozens of coal-fired power plants across the U.S. plan to stop burning coal or to shut down by the end of the decade, the Associated Press reported. The decision is not driven by climate change concerns but to comply with a new wastewater rule requiring them to clean coal ash and toxic heavy metals from the water before it's dumped back into streams and rivers. The plants had an October deadline to tell state regulators how they plan to comply. According to the Environmental Protection Agency, the rule is expected to affect 75 coal-fired power plants across the country. The...