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  1. Cars running in the garage,or anywhere else for that matter do not produce carbon-dioxide [co2] which by the way is a naturally occurring inert gas that is actually essential for the natural life cycles on biosphere EARTH.Cars running in your garage do however produce the very deadly carbon-monoxide [co1]which is a by-product of all fossil fuel fires be they internal or external.Please do you research and stop leading people astray with your obviously bias [co2] crap.

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