this is less about earth and the green tech, and more about mars, as his reply to EverydayAstronaut's query about the viability of the Sabatier process hints:

this is less about earth and the green tech, and more about mars, as his reply to EverydayAstronaut's query about the viability of the Sabatier process hints: https://twitter.com/elonmusk/status/1352413001068896258 https://twitter.com/elonmusk/status/1352413001068896258 > It’s a good path for fully renewable rocket energy, so solves part of problem, but longer chain hydrocarbons than CH4 are needed to be solid at room temp This also links up with spacex not only buying two oil rigs to turn into starship platforms abut also buying a gas well for in house methane production