A process for capturing CO 2 from the atmosphere. Food-energy-water implications of negative emissions technologies in a + 1.5 ☌ future. Economic and energetic analysis of capturing CO 2 from ambient air. CO 2 capture by alkaline solution for carbonate production: a comparison between a packed column and a membrane contactor. Techno-economic assessment of CO 2 direct air capture plants. The potential role of direct air capture in the German energy research program-results of a multi-dimensional analysis. The road to achieving the long-term Paris targets: energy transition and the role of direct air capture. Moisture swing sorbent for carbon dioxide capture from ambient air. IPCC Special Report on Carbon Dioxide Capture and Storage (eds Metz, B.
Emergency deployment of direct air capture as a response to the climate crisis. Negative emissions-Part 1: research landscape and synthesis. Direct Air Capture of CO 2 With Chemicals: A Technology Assessment for the APS Panel on Public Affairs (American Physical Society, 2011). IPCC Special Report on Global Warming of 1.5 ☌ (eds Masson-Delmotte, V. IPCC Climate Change 2014: Synthesis Report (eds Core Writing Team, Pachauri, R. Input requirements for chemical absorbents do not limit DAC scale-up. For the same climate change mitigation effect, TSA DAC needs about as much renewable energy and land occupation as a switch from gasoline to electric vehicles, but with approximately five times higher material consumption. With a low-carbon energy supply, HT-Aq and TSA DAC have a net carbon removal of up to 73% and 86% per ton of CO 2 captured and stored. Our results show that TSA DAC outperforms HT-Aq DAC by a factor of 1.3–10 in all environmental impact categories studied. Here we present a comparative life-cycle assessment of the current demonstration plants of two main DAC technologies coupled with carbon storage: temperature swing adsorption (TSA) and high-temperature aqueous solution (HT-Aq) DAC. Their scale-up is a backstop in many climate policy scenarios, but their environmental implications are debated. Direct air capture (DAC) technologies remove carbon dioxide (CO 2) from ambient air through chemical sorbents.