「Researchers from the University of Cambridge have developed an energy-efficient method using activated charcoal to capture CO2 from the air. This battery-like charging process, which requires only 90-100°C temperatures for CO2 removal, shows promise over current methods demanding up to 900°C.」
https://newsletter.newsminimalist.com/p/new-method-captures-co2-at-lower-temperatures-2-more-stories
https://newsletter.newsminimalist.com/p/new-method-captures-co2-at-lower-temperatures-2-more-stories