Climeworks has raised $ 31 m for its costly technology that sucks carbon from the atmosphere . The small Swiss firm uses high - tech fans and filters to remove carbon dioxide from the atmosphere at about $ 100 a tonne , which could help reduce the impact of global warming . Zurich Cantonal Bank were among those investing in the project , which hopes to have a long - term " vision " of capturing 1 % of carbon emissions by 2025 . However , Climeworks prices remain too high , with Canadian rival Carbon Engineering recently saying it could remove carbon dioxide from the air for as little as $ 94 a tonne .
Climeworks has raised $31m for its costly technology that sucks CO2 from the atmosphere. The small Swiss firm uses high-tech fans and filters to remove carbon dioxide from the atmosphere at about $600 a tonne, which could help reduce the impact of global warming. Zurich Cantonal Bank were among those investing in the company, which claims to have a long-term "vision" of capturing 1% of CO2 emissions by 2025. However, Climeworks costs remain too high, with Canadian rival Carbon Engineering recently saying it could extract carbon dioxide from the air for as little as $94 a tonne.