Oktoberfest is to blame

The Guardian reports:

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.
Researchers at Technical University in Munich walked and cycled around the perimeter of the festival last year with mobile sensors aloft. The instruments found the event emitted nearly 1,500kg of methane – 10 times the amount that wafted off Boston, Massachusetts, in the same period.

Well obviously Oktoberfest must be banned to save the planet. Bags not going to Bavaria to explain though.