“Controversies of Carbon Dioxide Removal”, Kevin Anderson, Holly Jean Buck, Lili Fuhr, Oliver Geden, Glen P. Peters, Eve Tamme2023-11-16 (carbon capture)⁠:

Various methods of carbon dioxide removal (CDR) are being pursued in response to the climate crisis, but they are mostly not proven at scale. Climate experts are divided over whether CDR is a necessary requirement or a dangerous distraction from limiting emissions. In this Viewpoint, 6 experts offer their views on the CDR debate.

Carbon dioxide removal (CDR) encompasses various deliberate human approaches that can remove CO₂ from the atmosphere and store it in oceanic, terrestrial or geological reservoirs over climate-relevant timescales of decades to millennia. These approaches include schemes such as reforestation, afforestation, iron fertilisation, ocean alkalinity enhancement, enhanced rock weathering, bioenergy with carbon capture and storage (BECCS) and direct air capture and storage (DACCS). CDR is distinct from methods aimed at preventing new emissions at point sources, such as carbon capture and storage (CCS) at fossil power plants or cement works, as these prevention methods are classed as emission reduction strategies.

Why are climate scientists divided about CDR? · How essential are CDR approaches to meeting climate targets and combatting climate change? · Which CDR methods do you think could be promising? · In your view, what are the main socioeconomic problems with CDR? · What are the main technical limitations of CDR? · What do you recommend is the best way to move forward in the debate and combat climate change?