Many people had never heard of "fracking" — a process that uses drilling and high-pressure water to release natural gas from deep underground — until Josh Fox's 2010 documentary "Gasland," which went on to be nominated for an Academy Award. The process, and its health effects on people and impact on local water supplies, has become a point of great contention as it has moved around the country and now the globe, largely pitting environmentalists and grassroots activists…