This Article goes into more detail about how it works...
https://www.uq.edu.au/news/article/2...eenhouse%20gas.
To my simple mind - nothing happens to the CO2....it just gets stuck in the polyamine gel ....
so as long as the process for making the gel creates less CO2 than in can absorb....bonus...
'Course my trees can do that already - albeit they can't really charge my phone....