Avnos, a Californian company, is developing a device that separates both CO₂ and water from thin air. This pioneering technology aims to tackle climate change and alleviate drought in some parts of the world. Avnos has secured $92 million in funding to date.https://www.notebookcheck.net/World-s-first-hybrid-direct-air-capture-system-removes-CO2-and-water-out-of-thin-air-and-receives-92-million-in-funding.765667.0.html
Sounds very interesting. I can't wait for independent testing to see the actual energy budget. I hope it lives up to the hype.