I think the reality is much more grim. I believe we are now firmly in the territory where it is incontestable. (My opinion was cemented after reading Overshoot: How the World Surrendered to Climate Breakdown by Andreas Malm, Wim Carton)

We will be spending much of our upcoming years trying to get people and capital to accept that fact, before we can even start thinking about what little we can even do. By which point, we may actually just be having to scramble to mitigate the immediate sequelae of the changed climate, rather than focus our efforts to fix the underlying cause.