A BCG paper linked to the Davos 2020 discussion talking about how quantum computing can help in the medium term when it comes to meaningfully reducing emissions
Because quantum computers employ distributed probability amplitudes rather than work through sequential yes–no decisions, they have the potential to solve problems that are far beyond the reach of today’s machines. As one of the fathers of quantum computing, Richard Feynman, put it, “Nature isn’t classical, dammit, and if you want to make a simulation of nature, you’d better make it quantum mechanical.”
https://www.bcg.com/publications/2020/quantum-advantage-fighting-climate-change.aspx?redir=true