This great graph came to my attention from this video from vlogbrothers. It also has some good explanations of what it means.
Note that carbon capture doesn’t really make sense till you’ve exhausted all the other emission minimizing methods.
Source: https://www.edf.org/revamped-cost-curve-reaching-net-zero-emissions
You can only reduce so much carbon going to solar or EVs. As you reduce the amount of carbon emissions (the y axis) the methods to keep reducing carbon cost more. (the x axis)