Oktoberfest 'produces 10 times as much methane as Boston'

First analysis of environmental impact of Munich festival reveals extent of emissions

For the millions of people who descend on Munich for the annual bash, Oktoberfest is a celebration of beer, bands and bratwurst.

But as the dust settles for another year on the world's largest folk festival, and die Bierleichen ("beer corpses") return to the land of the living, environmental scientists have released the first analysis of methane emissions from the 16-day party.