Its not that they aren't primarily related to it, most proposals are neutral as to whether a ton of CO2 is avoided or sequestered. It just so happens to be the

Its not that they aren't primarily related to it, most proposals are neutral as to whether a ton of CO2 is avoided or sequestered. It just so happens to be the case that its relatively expensive to capture and sequester CO2 from the atmosphere compared to emissions avoidance. The lowest hanging fruit is efficiency (better insulation, more efficient appliances, cars, etc), followed by lower carbon forms of electricity, etc. We'll likely need to do sequestration but, assuming a gradually rising carbon price, it won't make economic sense to do it at scale until we've done the more cost effective things first.