The animal ag industry outputs more emissions than the transportation sector but we're getting screwed at the pumps while the meat industry gets billions in subsidies.
True, it would be nice if we had enough caves for millions of people to live in unfortunately we need things like roads and buildings.
It would be nice if more focus was put on the sustainability and longevity of these projects unfortunately most people don't think about infrastructure until its too late.
The best way to capture and storage carbon is with wood. So why do they still build houses with concrete instead? And no, concrete is not that much cheaper, neither is it more flame resistant.