Ozone, Mercury, Ash, CO2: Regulations Take on Coal's Dirty Underside

Inside Climate News: When the EPA tightened the national standard for ozone pollution last week, the coal industry and its allies saw it as a costly, unnecessary burden, another volley in what some have called the war on coal.

Since taking office in 2009, the Obama administration has released a stream of regulations that affect the coal industry, and more are pending. Many of the rules also apply to oil and gas facilities, but the limits they impose on coal's prodigious air and water pollution have helped hasten the industry's decline.

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