It might already be too late to stop catastrophic climate change, so we need to cut down dramatically right now. Not in 5 years or later.
Without things like high carbon tax and credits in place we just don't have the incentive structure to get enough innovation and wide adoption to make a difference with technology in a meaningful timeframe. Instead we still have countries subsidies or give tax cut to fossil fuel companies. It's bonkers.
We could solve this with technology in the needed timeframe, but I don't see the political will and ability to create the right incentives and get this done globally in the needed timeframe.