Twitter threads on why carbon taxes aren't sufficient
And https://twitter.com/Noahpinion/status/1176920336660451329?s=19
Claim is its hard to choose a price for carbon. Carbon taxes exempt agriculture and other important sectors/push activities to where carbon taxes are lower. And using subsidies its cheap to subsidize a completely green technology and get something which emits no carbon emissions like an electric car. But we'd have to make fuel veery expensive to get everyone to switch to electric cars.
Points have various levels of validity...