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It is true that many cars will clean the air of particulate matter these days. That is the only kind of pollution that a modern ICE car will remove, but it is n
by torpfactory 8y ago
It is true that many cars will clean the air of particulate matter these days. That is the only kind of pollution that a modern ICE car will remove, but it is not the only kind of pollution worth talking about....
CO2, NOx and others are just-as, if not more important and your air filter won't do jack diddly for those.
- microcolonel 8y agoNOx exhaust aftertreatment systems are standard, so a compliant vehicle today will have considerably less NOx in exhaust as well. As for CO2, well, it's not a small chunk, but cars and light trucks account for less than half of transportation sector CO2 emissions; and the transport sector accounts for about 28% of overall CO2 emissions. It's not silly to reduce CO2 emissions in light trucks and cars, but at most reducing those sources would only cut about 15% of U.S. CO2.
- bronson 8y ago"only 15%"? That's huge!
- microcolonel 8y agoKeep in mind, this is in a country where light trucks and SUVs account for a huge proportion of personal vehicles, and where the average age of a car on the road is about twelve years. As the window of vehicle years shifts further, you can expect that proportion to shrink.
- londons_explore 8y agoCitation for exhausts having significantly less NOx than city air?
- microcolonel 8y ago> Citation for exhausts having significantly less NOx than city air? I absolutely, unequivocally, did not say that.