eli5: Why can’t we install filters over tailpipes to reduce their carbon output?

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I understand that this is not the solution, we need to phase out gas-powered engines in order to reduce carbon emissions by 50% by 2030, and I understand that the filters would have to be changed and washed/recycled/disposed of constantly and couldn’t just sit on the tailpipe clogging up, I just don’t understand why a filter would be useless, wouldn’t it help just a little? Would it just ruin the cars? What about rooftop carbon capture devices? Is there nothing we can do to reduce pollution and carbon output from our current combustion engines?

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Anonymous 0 Comments

We do. Cars are less polluting than lawn mowers now. You get to a point where if you’re exhaust is too restrictive the care will not run. I suppose you maybe could put a maintenance item like a filter you clean/replace every 1000 miles but then people will just take them off and claim they get better performance(whether it’s true or not) so they don’t have to pay to replace it or keep up on it.

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