First step is just agreeing there is a problem and put it on top of the agenda though. Politicians are supposed to set goals and find incentives; the "how" part (batteries vs. hydro vs. new tech for power storage vs. nuclear) can be more up to the market. A politician who is scared of climate change will at least be easier to convince to approve a new nuclear plant in (relative) silence even if they are not actively campaigning on it as a solution. And properly taxing emissions will make nuclear plants more competitive, again without a politician having to explicitly aim for it or campaign for it.