JOURNAL: Geochemical negative emissions technologies
Summary
Authors:
James S. Campbell
Spyros Foteinis
Veronica Furey
Olivia Hawrot
Daniel Pike
Silvan Aeschlimann
Cara N. Maesano
Paul L. Reginato
Daniel R. Goodwin
Loren L. Looger
Edward S. Boyden
Phil Renforth
Heriot-Watt University
The Climate Map, NY, United States
MIT
Howard Hughes Medical Institute
Geochemical negative emissions technologies
Frontiers
June 2022
This paper explores geochemical negative emissions technologies (NETs), which use natural minerals to capture and store CO₂ from the atmosphere. These methods include enhancing natural weathering processes, reacting minerals with CO₂ to form stable rocks, and modifying ocean chemistry to absorb more CO₂. Some approaches work deep underground, while others take place at the surface or in industrial settings. While promising, these technologies are still in the early stages, with limited real-world testing. The paper reviews current progress, key challenges, and opportunities, and outlines a roadmap for scaling up these solutions to help tackle climate change.