North Jersey: To stop climate change, the nation must "stop coal," a top environmental architect urged during a speech at Ramapo College’s conference on climate change. Edward Mazria, who has led efforts nationwide to build more-energy-efficient buildings, said the only way to control global warming is "an immediate moratorium on all new coal-fired power plants in the United States" and a phaseout of older coal plants. "Climate change is the greatest challenge we …