The quest to end the use of fossil fuels might not be as daunting as you think. A University of Sussex study claims that humanity could drop coal and oil within a decade, based largely on historical evidence that many tend to overlook. Professor Benjamin Sovacool notes that energy transitions have happened quickly whenever there was a combination of "strong government intervention" with economic or environmental incentives to switch. It only took 11 years for the Canadian province of Ontario to abandon coal energy, for example, while nuclear power surged to 40 percent of France's electricity supply within 12 years. In the case of fossil fuels, it's a combination of climate change worries, dwindling resources and advanced technology that could step up the pace.