North America, once a sponge that sucked in a significant portion of the world’s oil, will instead be supplying the world with oil and other liquid hydrocarbons by the end of this decade, according to ExxonMobil’s annual long-term energy forecast. In a forecast that might make economists happy but environmentalists fret, Exxon’s two chief products, oil and natural gas, will be abundant and affordable enough to meet the rising demand for energy in the developing world as the global middle class swells to 5 billion from 2 billion and buys energy-hungry conveniences such as cars and air conditioners. -- Jonathan Fahey, Associated Press, 9 December 2014