There are attempts at this, Stockholm's district heating operator has a pilot project[1]. [1]: https://www.stockholmexergi.se/en/environment-and-sustainability

There are attempts at this, Stockholm's district heating operator has a pilot project[1]. [1]: https://www.stockholmexergi.se/en/environment-and-sustainability/negative-emissions/ https://www.stockholmexergi.se/en/environment-and-sustainabi... Disclosure: I used to work with them, though not on that project, and my current employer still works with them