Now scientists say BREATHING is bad for the environment.

Wouldn't you know it? The Daily Mail reports, "The new study was led by Dr Nicholas Cowan, an atmospheric physicist at the UK Centre for Ecology and Hydrology in Edinburgh.

"'Exhaled human breath can contain small, elevated concentrations of methane (CH4) and nitrous oxide (N2O), both of which contribute to global warming,' Dr Cowan and colleagues say.

"'We would urge caution in the assumption that emissions from humans are negligible.'"

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