Absolutely. If climate alarmists were serious about this, the best way to phase out fossil fuels in the power grid is switching to all-nuclear power generation, or as close to it as possible. Green energy sources like solar and wind are nowhere close to being able to replace the baseload power draw of modern societies. Not only that, we should be working on miniaturizing and idiot-proofing nuclear reactors for use in international shipping boats, airplanes, cargo trains, etc. We will never stop needing fossil fuels until we can at least run our trade and good transport systems on something that isn't a combustion engine. Military aircraft carriers and submarines already run on nuclear generators and those boats are filled with bored idiot soldiers, so it's clearly possible.