For the past 25 years, Toxics Action Center has been “awarding” New England’s worst polluters with the dubious Dirty Dozen award. This year’s winners were no surprise: PSNH, New Hampshire’s largest electric utility, was on the list once again. In this year’s annual spotlight on twelve of New England’s worst polluters, PSNH’s largely coal-firing Merrimack Station and Schiller Station power plants earned the award for the millions of pounds of toxic air pollution and greenhouse gases released by the plants. The Dirty Dozen awards are getting lots of press coverage around New Hampshire, and highlight the massive problems PSNH’s coal plants cause New Hampshire residents. There is good news. Three of New England’s eight coal plants have closed in the past three years, and the rest (including Merrimack and Schiller) should read more…