Earlier quoted context omitted.
TerraPass offers $10/ton https://www.terrapass.com/product/productindividuals-familie...
Carbon offsets is not the same as co2 removal.
If carbon offset is done well, wouldn't it be equivalent?
Personal CO2 Removal as a Service
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Re: Personal CO2 Removal as a Service
#12Plant a tree.
Trees that grow and die and decompose release their carbon back into the atmosphere. The only way to make tree-growing carbon negative* is to sequester the grown trees underground.
*edited from “neutral”, sorry, typo
Re: Personal CO2 Removal as a Service
#13Re: Personal CO2 Removal as a Service
#14If I calculate that right, it is about $1100 a ton. I just gave a presentation on BECCS w/ Brazilian Ethanol which comes out closer to $30. I haven't put it up, but here is one of the papers I based it on https://www.sciencedirect.com/science/article/pii/S030626191...
May I make a guess? You can only get to that number if you ignore landuse changes due to the ethanol production?
Brazil had 379 sugar mills in 2014, thus there is already a land dedicated to sugarcane. This is a real business that makes money without subsidies.
Ethanol plants produce CO2 as a byproduct of fermentation which is nearly pure and easy to purify to the point where it can be compressed to 1200 psi and not have nitrogen phase separate out and not have water vapor mix with the CO2 and make carbonic acid that eats pipe.
So it is a small add-on to existing plants. A larger and more complex add-on would capture CO2 from the bagasse furnace.
This could lead to more land-use changes if it improves the economics and if the ethanol industry can find more markets for fuel and electricity.
Most of the ethanol plants are located near Sao Paulo and Rio because that is where the fuel and electricity are in demand. None of them are in the Amazon basin and few in the area to the south of it that is in risk of "savannafication".
Re: Personal CO2 Removal as a Service
#15Earlier quoted context omitted.
If carbon offset is done well, wouldn't it be equivalent?
AFAICT offsets are "We stopped one tonne from going in", removal is "We took one tonne out".
Unless I'm missing something, that sounds like the same net effect. Why is one better than the other apart from price?
Re: Personal CO2 Removal as a Service
#16I wonder if plants can absorb the Carbon directly via their roots from the CO2-made-stone?
Plants get their carbon from the air (CO2) via photosynthesis.
Re: Personal CO2 Removal as a Service
#17Would be a good franchise.
People probably prefer if CO2 was removed in their cities and not at some location kilometers away.
Re: Personal CO2 Removal as a Service
#18One important question is not just "Where is CO2 removal now?" but "Where can CO2 removal companies go if they get adequate funding and consumer uptake?" I subscribe to Climeworks and think of it a bit like an ongoing Kickstarter.
A lot of articles about climate change also leave one with an unfortunate sense of helplessness. This is something an average person can do.
Re: Personal CO2 Removal as a Service
#19Plant a tree.
Trees that grow and die and decompose release their carbon back into the atmosphere. The only way to make tree-growing carbon negative* is to sequester the grown trees underground. *edited from “neutral”, sorry, typo
It takes years for a tree to grow and decades, possibly hundreds of years for a tree to decompose in its entirety through natural processes (that is, after possibly decades of life).
It is a viable solution.
Edit: if anyone disagrees look up about the Carboniferous period
Re: Personal CO2 Removal as a Service
#20One important question is not just "Where is CO2 removal now?" but "Where can CO2 removal companies go if they get adequate funding and consumer uptake?" I subscribe to Climeworks and think of it a bit like an ongoing Kickstarter. A lot of articles about climate change also leave one with an unfortunate sense of helplessness. This is something an average person can do.
That's what I'm doing as well. I assume if climeworks is successful then there will be others interested in the space as well.