Renewable energy and replacing carbon emitting industrial chemistry with carbon neutral processes are the sum entirely of climate action.
There might be a tiny bit of nuclear built, but we don't have the capability to build enough to make a dent in the time scale we need to, and nuclear is far more expensive than solar plus batteries, so the profit motive means solar wind and batteries will win.
The people that built the technology aligned industrial policy and government incentives to allow them to create the technology, true. But it was technology action that is solving climate change.
There are two groups of people opposed to clean energy, one right wing and one left wing, and they were both extremely wrong about the technology, and the path of technology has been crystal clear for decades.
It was obvious in the 2000s, based on learning rates, that batteries solar and wind were improving at rates that would solve our climate crisis. The only question I had was if nuclear could play a part, and Vogtle, Summer, Olkiluoto, Flamanville, and Hinkley proved decisively that nuclear would not be a big player.
We don't need carbon taxes, those turned out to misalign incentives in weird ways (not all industries are equally sensitive to carbon prices, so applying equal taxes is far less than economically ideal for motivationchanges). Tax credits and guaranteed small purchases turned out to be extremely effective and efficient.