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SEARCH More than 5,600 stories! A great gift for crisis deniers! Humoring the Horror of the Converging Emergencies 94 color pages $24.99 now $15! Or read FREE online! Twitter Ping this story in social media: del.icio.us Digg Newsvine NowPublic Reddit Facebook StumbleUpon

Posted Sat Jul 18 2009: from New Scientist: Mystery methane belched out by megacities http://apocadocs.com/s.pl?1247935391 The Los Angeles metropolitan area belches far more methane into its air than scientists had previously realised. If other megacities are equally profligate, urban methane emissions may represent a surprisingly important source of this potent greenhouse gas...a research team led by Paul Wennberg, an atmospheric chemist at Caltech in Pasadena, estimated methane emissions for the Los Angeles region, then subtracted all known sources of methane, such as livestock, landfills and sewage. They ended up with an enormous amount of methane – about 0.14 to 0.34 megatonnes per year, or up to half of the total emissions that could not be accounted for by known sources. [Read more stories about: climate impacts, global warming, methane release] New!: Your Quips: katydidnt says: "Or... maybe the livestock have invisible friends?" Got a PaniQuip? Your Quip (limit 140 characters, no links, just wit): First name: The text shown in the Web image to the right: We reserve the right to reuse, remove, or refuse any entry.

'Doc Michael says: My invisible friends must be farting again. NEXT> More stories: House-passed global-warming bill proposes barrage of regulations Toxic Tsunami ( Mystery methane belched out by megacities) North Tampa residents win battle to stop chemical use at golf course Potential Neurotoxin Could Be in Our Food Want to explore more? Try the PaniCloud!

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