Climate change will be also regressive and hit poor people the hardest. So, even though gas tax may be regressive, no gas tax is likely even more regressive.

Climate change will be also regressive and hit poor people the hardest. So, even though gas tax may be regressive, no gas tax is likely even more regressive. It's just postponed by a few years/decades. And there are mitigations we can take to help the poor, as sibling comments say.