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Is CO2 the worst thing that comes out of a cars exhaust? Yes there's Global warming, and a record high CO2 count.
But there's also:
CxHy (or Hx or HC) = Hydrocarbons
CO = Carbon monoxide
NOx = Nitrogen oxides
SO2 = Sulphur dioxide
PM = Particulate matter
And all the other toxic compounds (that i'm not informed enough to mention).
Which studies show contribute to acid rain, smog, asthma, cancer, autism etc.
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I try to be helpful. I'm not an expert.
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