Also a geologist, I know there are smart people working on this stuff but I've also heard from folks that the modern carbon sequestration solutions are largely a grift.
Scalability is a big problem to tackle for sure and I largely agree that carbon sequestration should not be our number one solution to pollution. It infuriates me to no end that these things aren't even solved problems and yet still touted as reasons why we can keep pumping oil and gas and building pipelines.
I wish we had politicians brave enough to say they will make the hard and unpopular decisions. As it is, politicians only make unpopular decisions when it helps the business class. Federal NDP campaigned on removing the carbon tax. The Ontario NDP said they would by back the 407 and remove tolls. The only people I have seen with any ounce of courage and ambition so far are the ontario greens, but that's probably a byproduct of their long-shot odds of getting elected.
These policies don't happen because most people seem incapable of understanding what we are actually paying for with policies that increase affordability and access to things that are a net-negative on society like card, alcohol, and soda.
If fiscal conservatives were real, they would be the people rallying behind these ideas.