One of the problems with fracking, natural gas, and oil drilling is the release of methane. The current leak at the Southern California Gas Company site could be the worst methane leak ever, pouring 70,000 pounds of methane hourly into the environment.

Thousands of Californians Are Fleeing an Enormous Methane Leak. Here Are 8 Things You Need to Know.

http://www.motherjones.com/environment/2016/01/california-methane-leak