This is something that's both true and untrue. On the face of it, it's absolutely true. But what are governments, really? They're a reflection of the people they govern. So governments haven't responded because it simply isn't a priority for most people.
I've long held the view that we'll only have a solution to climate change when it becomes economic to do so. The pandemic has only strengthened that view. We have millions of people who won't even mildly inconvenience themselves to help stop others (and themselves) from getting seriously ill or dying.
And you want those same people to do something about climate change?
By "economic" I mean we simply need cheaper sources of energy than fossil fuels. That could be because something else gets cheaper, fossil fuels due to scarcity simply get more expensive or some combination of the two.
The biggest hope for that currently seems to be solar, which has seen its price plummet in the last 20 years.
We already have the technology to make fuel from the air but there's no point burning fossil fuels to do that. If however your energy came from a cheaper source there is a price point where that would make sense. At that point, gas-guzzling vehicles become carbon-neutral.