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As much as I agree with the implication that O&G companies latch on to every potential carbon sink as a way to greenwash themselves, carbon capture does have merits.
However, the only ones who can currently utilize carbon capture on a significant scale are the ones who produce a lot of carbon to begin with. Technology will have to advance drastically for it to be a carbon sink effective enough to offset emission to the point where emission cuts can be scaled down.
Source: Last year I was involved in surveyon an area that was planned for huge-scale carbon storage after capture.
One industry that is really suited for CC is steel production. Making steel from iron is basically removing the carbon from the iron ore, and that has been done since the 1800s by introducing oxygen to the molten iron. This creates a pillar of carbon dioxide from a very localized point and should, if the technology existed and was used, be easy to capture. The Swedish steel manufacturer SSAB accounts for 11% of the national Swedish emissions, and 10% of Finland's. It's not negligible. And steel is used every day, everywhere, and for everything. Every other metal pales in comparison. It's a gigantic industry. And it's perfect for carbon capture.