I waited a bit before responding since I both don't believe in man-made global warming, nor do I support man trying to change the climate. However I was curious to see if any of the staunch socialist would be able to answer, and they have not.
No. No company has come up with a filter for CO2 because it would be far to impractical. Not only would a filter have to remove CO2 created from burnt fuel, but also the natural CO2 in the air to begin with, because how would you distinguish the two?
A filter would have to be able to handle the trace gases and unburnt fuel that escape the Catalytic Converter (CC) and be able to handle the extreme temperatures of exhaust gas, plus water condensation from the relative cool exhaust pipes, have a filter large enough to not bog down the engine by restricting air flow, while being small enough in size to prevent CO2 from escaping, and not get clogged in the process.
If one did get passed that, we would still have to figure out what to do with the CO2 collected. Do we store it, and how? A pressurized tank? The weight of the tank will kill gas mileage, while the energy used to pump the tank would sap energy from the engine, requiring more fuel. We could perhaps liquefy it, but who has money for a nitrogen cooling system?
Even if all these huge impractical issues are overcome, where would you empty your tank of CO2? Who would collect the CO2? What would they do with it? Chances that a common car engine would produce pure enough CO2 for industrial use is unlikely, and even if it did, there is a surplus of that in the industry as is. Oil companies use CO2 from their own refineries to pump more oil out of wells.
Last of all, even if all that were taken car of, a far more practical, cheaper, more efficient solution would be to skip the car filter altogether, and just make government funded air purification plants using they same technology the space station uses to make oxygen from CO2. None will do anything at all for the environment, but it's the thought that counts.
Yeah, if only we could make them drive the cars we want, the speed we want, where we want and when we want, the world would be a better place. They don't need those huge cars. They should comply with the collective. I came up with a little motto "To each according to their need, from each according to their ability". If only we can ditch that dumb document a bunch of old dumb guys wrote called the Constitution, we'd be able to make this into the paradise Cuba is. The only people unhappy in Cuba are the ones willing to die swimming to the US for freedom. Liberty... what a joke.
I've been doing some reading, and there's always a nay-sayer on everything.
This is what I have read as reasons for not implimenting technology.
Hybrids - Electricity mostly comes from power plants that run on coal.
Batteries have to be disposed of. They are expensive.
Biodiesel - Not practical
Ethanol - Not practical for many reasons. Affects price of everything else. Not enough land.
Electric - Same as hybrid. Small range, people would rather buy a car that puts out tons(literally) of carbon emissions, so once every four years or so, they can drive across the country.
The list and complaints go on and on. But I wonder what we can actually do about it, if there is anything.
I mean this question literally. If anybody knows about this, please post. Has any company considered Filtering our output? Our catyllitic converters don't catch everything and they don't last forever. Our coal plants and gas plants put out massive amounts of carbon emmisions 24/7. But since carbon molecules are larger than oxygen and nitrogen, shouldn't we be able to literally filter these? That seems simple enough and I'm wondering why it's never been brought up.
Also, while I do have my opinions and bias, I don't think there is any one solution to any of this. Just for those who actually belive that Global Warming/Climate Change exists, and that we can do something about it, what might you say to this conundrum?
It seems like there are many simple answers that should be implimented, but that the hard part would be getting people to comply. Even with gas prices at $3.30/gal, people still refuse to drive less than 80mph on the freeway, reducing that terrible 18mpg SUV to an even worse 10mpg. What is so hard about leaving wherever 10 minutes earlier and not being in such a hurry? Why can't people just accept that not one person thinks you're cool or better for having a 5ton vehicle? How is it that people are so incredibly lazy that they can't look over and check to see if a car is next to you before changing lanes? And God forbid someone actually moves their stupid little finger 2inches to use a turn signal....
All those things combined, I'd really like to know what people think and what the problem actually is. I'm just interested in your thoughts.

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