The recent natural gas well blowout in Aliso Canyon, California, was the largest methane leak in US history, according to new research from the University of California–Davis, the National Oceanic and Atmospheric Administration, and others.
During the period of activity — at least, October 23, 2015, through February 11, 2016 — more than 100,000 tons of methane escaped from the well. During the peak of the leak, enough methane was escaping from the well everyday to “fill a balloon the size of the Rose Bowl.”
