Greenhouse emissions hit new record, could bring 'destructive' effects – U.N.

FILE PHOTO: A truck engine is tested for pollution exiting its exhaust pipe as California Air Resources field representatives (unseen) work a checkpoint set up to inspect heavy-duty trucks traveling near the Mexican-U.S. border in Otay Mesa, California September 10, 2013. REUTERS/Mike Blake/File Photo

GENEVA (Reuters) - Greenhouse gas emissions surged to a record level last year and world temperatures could rise by more than twice the globally agreed warming limit if nothing is done, a U.N. report showed on Tuesday.

The "Emissions Gap Report" is one of several studies released ahead of U.N. climate talks in Madrid next week aimed at spurring world leaders to limit climate change.