and and and you can use carbon-negative nanotubes as ingredients in other building materials, which makes them stronger, so you need less of it, so you emit les

and and and you can use carbon-negative nanotubes as ingredients in other building materials, which makes them stronger, so you need less of it, so you emit less co2 making (for example) concrete: https://cpb-us-e1.wpmucdn.com/blogs.gwu.edu/dist/d/73/files/2019/12/2019-Amplified-CO2-reduction-of-greenhouse-gas-emissions-with-C2CNT-carbon-nanotube-composites.pdf https://cpb-us-e1.wpmucdn.com/blogs.gwu.edu/dist/d/73/files/... (sorry for multireplies but this concept is just so exciting to me)