Humanity has just about built the infrastructure to lock in 2 degree temp increase. We are talking about a matter of years, not a decade. We are talking about locking in, not higher probability.
Yet, there is uninterrupted talk of growing our economies (but little talk of reducing the wealth gap). If our economies are to continue growing. If we continue to be an extraction oriented species. If we continue to spend tens of billions a year searching out new fossil fuel reserves when we can't use half of those we already know of without pushing the 4-6 degree threshold..?
Nature, will go on. Some portion of humanity, will go on. It's not the end of the world. Just the end of the world as we know it.
If today everyone ditched their cars and used public transit and bikes, we shut down the airlines, and became vegan we'd be most of the way there. Switch to organic farming and cradle-to-cradle manufacturing would almost surely get us the rest of the way there.
Yeah, I know, that's not going to happen and people don't want it to. My point is simply, the solution is not some black magic or future technology. The solution is simply a choice.
edit: for cradle-to-cradle, see... https://en.wikipedia.org/wiki/Cradle-to-cradle_design