That's a good question. I suppose a very broad answer to that from the economist camp would be to make sure that you have a tax system that reflects the price of carbon, and if you have that, then in principle, with the prices of the goods and services, people are incentivized to turn towards greener products. That's not the only answer, but yes, it's a broad tool that does work to an extent.
On April 15th, 2021. See this statement in context.