no, even if you are a greedy kapitalist pig, we'd be better off not burning the carbon...because: 1. You can't scrub the air using energy from burning fossils

no, even if you are a greedy kapitalist pig, we'd be better off not burning the carbon...because: 1. You can't scrub the air using energy from burning fossils fuels--it puts more C02 into the atmosphere than it yields energy to take it back out again, and 2. In the scenario described, we were only able to provide 90-95% of our energy using carbon-neutral sources. That and #1 above means that we would not have the energy needed to scrub any C02 from the atmosphere. Burning fossils fuels at that point would be a net loss in power.