If we had an actual market for carbon emissions, people would be very incentivized to come up with solutions that scale better than burying charcoal. But since

If we had an actual market for carbon emissions, people would be very incentivized to come up with solutions that scale better than burying charcoal. But since we're not even incentivizing people to bury charcoal, I'm not very surprised that we made little progress at doing more difficult things.