Briefings • india plans $16 Billion Energy-Saving Credit Market - India, the world's fourth-largest polluter, plans to start a market to trade energy-saving credits that may reach 740 billion rupees ($16 billion) in five years as it seeks to curb emissions that cause global warming. The exchange-traded system may help India meet its target of cutting carbon intensity, or the amount of carbon dioxide released per unit of gross domestic product, by as much as 25 percent from 2005 levels by 2020.