It's not as simple as that, bro. There's demand for fossil fuels because our entire society was built around it, before we knew it was a problem. Now we do know there's a problem, but our industries and lives are still dependent on energy, with the majority of the energy required to be from fossil fuels. For consumer demand to stop, we'd have to literally stop using energy altogether.
So demonstrate it. The vast majority of pollution is caused by extremely profitable capitalist industries, supported by neoliberal capitalist states. And democratic will continues to swing towards reduction, yet states, bought off by fossil fuel companies, refuse to take action.
Those capitalist industries are either transportation or fossil fuels companies, and if they weren't capitalist, they'd still exist, and they'd still make the same shit.