I have no idea why you're being down-voted. You literally can make any hydrocarbons we get from crude using synthesis gas (from CO2 and water split into hydroge

I have no idea why you're being down-voted. You literally can make any hydrocarbons we get from crude using synthesis gas (from CO2 and water split into hydrogen) using the Fischer-Tropsch process: https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process https://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_proces... Are folks just not aware of this, so they think people who say you can "make plastic out of CO2 and water" are talking hand-wavy nonsense? The process is used commercially today in Qatar, Malaysia, and South Africa plus has had pilot plants in the US. But many of these US pilot plant efforts stopped when the price of oil cratered. So again, we absolutely do have alternatives to crude oil, it's just a function of economics.