Damage report reveals LA methane leak is one of the worst disasters in US history

A week after the ruptured natural gas well in Aliso Canyon was finally declared sealed, we have a full account of the environmental damage — and it doesn’t look good. A new paper published in the journal Science declared it the one of the largest environmental disasters in US history. In total, 97,100 metric tons of methane was released into the atmosphere over the course of 112 days, equal to the greenhouse gas emissions over over half a million cars.

The study drew its measurements…