Various: GREEN CITY Over the past few years, a growing number of environmentalists have called for greatly curtailing the burning of coal, a practice that threatens the health of people and the planet. On Nov. 14-15, Rainforest Action Network (RAN) held protests in San Francisco and more than 50 other cities against Bank of America and Citibank, two of the largest financial backers of coal projects. RAN cites data showing that coal is responsible for nearly 40 percent of US global warming …