Nuclear fission powered CO2 scrubbers could be built with today's technology. Not to mention getting rid of current CO2 emissions from coal and natural gas electricity production. Unfortunately the Greens have been making that politically impossible for the last 50 years. Tax carbon and reduce acceptable man-made radiation exposure from power generation to something reasonable in the same bill. This would be a compromise position. Even ExxonMobil supports a carbon tax. Let's do it already.