Just a few years ago, the world watched nervously asIndia went on a building spree of coal-fired power plants, more than doubling its capacity and claiming that more were needed. Coal output, officials said, would almost triple, to 1.5 billion tons, by 2020. India’s plans were cited by American critics of the Paris climate accord as proof of the futility of advanced nations trying to limit their carbon output. But now, even as President Trump pulls the United States out of the pact, India has undergone an astonishing turnaround, driven in great part by a steep fall in the cost of solar power. Experts now say that India not only has no need of any new coal-fired plants for at least a decade, given that existing plants are running below 60 percent of capacity, but that after that it could rely on renewable sources for all its additional power needs. Read more