Such proposals are suggested over and over at the climate related summits. Most recently on COP25. Here’s a bit more about it: https://www.economist.com/graphic

Such proposals are suggested over and over at the climate related summits. Most recently on COP25. Here’s a bit more about it: https://www.economist.com/graphic-detail/2019/12/01/at-cop25-policymakers-will-try-to-lay-plans-for-a-global-carbon-market https://www.economist.com/graphic-detail/2019/12/01/at-cop25...