And ten years later, with little done, this kind of a statement would look really bad in retrospect.

We need both fast actions and we also need actions that take ten years or even thirty. Everything helps.

I've been participating in climate discussions for multiple decades.

The less we do and the later we do, it's going to be worse. But it's still better than not doing anything.

Ie there's no point in time, after which it's not worth doing anything.