"Canada-based Svante Inc. will provide Climeworks, a Zurich-based pioneer in direct-air-capture, access to its patented solid absorbent technology, the companies said in a statement. They plan to develop facilities that simultaneously capture the greenhouse gas from both industrial sources and ambient air."

LINK

"Technology that would suck carbon dioxide from the air and ocean water could be more quickly scaled up to address climate change now that the military is getting involved, scientists say."

LINK

Gambhir, Ajay, and Massimo Tavoni (2019): Direct Air Carbon Capture and Sequestration: How It Works and How It Could Contribute to Climate-Change Mitigation. One Earth 1 (4): 405–9. https://doi.org/10.1016/j.oneear.2019.11.006.

‌"Here, we explain how DACCS works, focusing on two major processes that have been developed into large-scale pilot plants. We discuss cost estimates and operational energy requirements, as well as ecological and ethical considerations. We highlight the role of DACCS in the low-carbon transition by discussing its benefits, while also noting potential trade-offs and uncertainties that deserve further investigation."

LINK

Power, Ian M., Gregory M. Dipple, Peter M.D. Bradshaw, and Anna L. Harrison (2020): Prospects for CO2 Mineralization and Enhanced Weathering of Ultramafic Mine Tailings from the Baptiste Nickel Deposit in British Columbia, Canada. International Journal of Greenhouse Gas Control 94 (March): 102895. https://doi.org/10.1016/j.ijggc.2019.102895.

‌"Experiments were conducted using metallurgical test samples and pulps from cores with the aim of determining the potential for this deposit to sequester CO2 via direct air capture of atmospheric CO2 and carbonation using CO2-rich gas. The experimental direct capture rate was 3.5 kg CO2/m2/yr and would sequester 17 kt CO2/yr based on year-round reaction and when extrapolated to the scale of the proposed tailings facility (5 km2)."

LINK