Published: March 5th, 2024,
Last updated: May 30th, 2025

Technologies for capturing CO2 from the atmosphere could remain more expensive in the future than observers have previously assumed. Researchers from ETH Zurich have analyzed three technologies for Direct Air Capture (DAC) plants for filtering and storing CO2. By 2050, the cost per ton of CO2 filtered from the air could still be between 230 and 540 dollars – nearly double the previous estimates.