To what extent?
- Ensure Natural Gas overtakes Coal.
- Start a National Nuclear Project, to immediately build dozens of modern plants.
- Provide R&D into Solar with the intent of mass production later this century.
- Provide R&D into Fusion with the hope and a prayer of mass production sometime next century.
At a minimum we have to do steps 1-3. Simply cutting our CO2 emissions by half or even three fourths will do _nothing_ to address Climate Change, as radiative forcing would still be increasing non-stop.