Keeping existing plants running is the sensible approach in my mind. We can't build new nuclear power to reduce CO2 emission, it's much to late for that. We want drastic reductions in 5 - 6 years, the first nuclear power plant won't be ready for another 10, 15, 20 years. If we wanted to go nuclear we should have started in 2000. Right now we start reducing consumption, build wind turbines like crazy and close the coal and oil fired power plants first, then gas and nuclear last.