This car cleans the outside air as you drive it

Give me a break... Less than 5 pounds of carbon for every 20,000 miles? But maybe if the technology advances and I could get a 5 pound cinder block out of the trunk every hour I could build my own house very slowly and that'd be fun.

 

You laugh, but the foundation of my house was made like this:

 

They don't make 'em like they used to....

 

Didn't have much luck finding what exactly the technology they are using is. Whatever it is, the car is mainly publicity. The technology will likely work out better in a stationary plant.

 

We used CO2 Scrubbers in the canoe club.
I don't remember the chemistry exactly but it went something like using a liquid amine to remove the CO2 and heat to remove the CO2 from the amine.
We used them to remove something like 300 pounds of CO2 per day from the atmosphere but there would be two kinds of 'scaling' problems with using this tech on a planetary scale.
The liquid amine was prone to scaling and the scrubbers were made to be portable and efficient enough for military use - meaning they didn't have to BE very much of either one as long as they were rugged and dependable.
Even though Nucular power is close to being REALLY emissions free instead of merely "carbon neutral." it's expensive as H and politically complicated. Back when I was a slimy contractor for Uncle they were tinkering with a solid amine solution, and they got it to mock-ups but I don't know if this system made it to today's boats.

Inasmuch as one would actually WANT a government to try to solve (anthropogenic) climate change dynamically, I'm thinking that a plankton or algae (a redundancy?) based solution would be more effective than some kind of human engineered ERB inspired "atmosphere factory."

Or?
You could have the mother of all X-prizes.

 

Alternative Cement and calcium piling sources are said to consume carbon

 

From the Googles:
...its [cement/concrete] popularity comes at an environmental cost –the production of concrete, which is made with cement mix, contributes about eight percent of all carbon dioxide emissions worldwide.Aug 8, 2021

(**) FWIW, I think that the Googles are full of balloon juice.
I'm not much of a volcanologist (nor are most of the ones who claim to be) but I'm guessing that volcanos produce quite a lot of carbon and when you add things like power plants, cars that aren't Priuses, aircraft, bottling water, factory emissions, bovine fluctuance, and all the other naturally occurring bio-processes there's not much elbow room left over left for cement's alleged eight-percent contribution to the planets destruction.....

 

One of many claiming to use more co2 than released (at least reduce)

Carbon curing - Concrete curing | Aramco

 

Nothing. They already did it 2 decades ago.
2000 Nissan Sentra CA "Clean Air" Model Claims Title as the Cleanest Gasoline-Fueled Car in the World
Nissan claimed it emits less harmful emissions while being driven than a vehicle that is parked all day.

I think some of the technology has been absorbed into the Advanced Technology Partial Zero Emissions standard, AT-PZEV with the "ozone scrubber" removed.

 

That's an ICE car that greatly reduces the regulated pollutants it emits.

The OT is a BEV that removes CO2 from the air as it is driven. Its direct operation is resulting in something being taken out of the atmosphere, and being locked away. The only previous car technology that could claim that is DPFs as they do remove particles that come into the air intake of the engine.

 

Yep... Back in early 2000's my friend built something similar to this, but much larger. They combined recycled paper with concrete or Papercrete. He gave me a couple sample blocks of various sizes and they've been outside in the PNW's relentless rain for two decades and still no rot, no deterioration, no water retention and that's without any paint or sealant of any kind. Of course like most eco-conscious designs, if you don't have laws to force the market to these far less planet killing options, these advancements never get adopted.

 

There is also in recent news a train car to do this:

Modified trains could harvest CO2 directly from the air | E&ampT Magazine

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Yours truly is preparing a review of CO2 capture by basaltic rocks and concrete. In that sense it is very welcome to read about volcanoes and concrete 'together' here. They really belong together

Basalt minerals and concrete are both absorbing CO2 as we speak. Both could be optimized by spreading them out Another way to trap CO2 is by collecting and injecting it into suitable deep rocks. The last is remarkably small compared to first two. At an appropriate time I will say more

I also make a guess in manuscript about the amount of concrete waste being made in Ukraine now, compared to annual average building de construction globally. That part may not make it into final version

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I've kept up on the tree-growing and soil-storing aspects of carbon capture, but not on algae research. So I can't link a current source on how well it's going. I can say that plankton means "floating" and refers to both tiny plants and tiny animals. Not a synonym for algae.