That's why I keep hitting "refresh" on this page of comments, in the hope that someone with more expertise than I have comes along and tells me it's not nearly as bad as I take this to be (i. e., "we're fucked").
Sorry, nope. The climate community pretty much agrees on this. How we will deal with the changing circumstances is wide open though, so there is some hope there. Given our history though..
edit: Here's a comment I made for released carbon due to permafrost melting (with literature):
There is some hope. We could geoengineer a giant shade structure to reflect sunlight away from earth. It would cost $trillions (twelve zeros) but it could be done with current technology. And it would cool the Earth immediately. Unfortunately it would do nothing to fix ocean acidification, which threatens to starve and/or suffocate us all.
Erm, it's not like anyone is suggesting "block all sunlight". We're talking about blocking at most a few percent.
On this topic, I've always wondered if you could make such a solar shade that hovers just on the far side of the Lagrange point between sun and earth, balancing radiation pressure and gravity. Does anyone know if that would be passively stable?
Not quite, something would have be done about lateral motion. L1-L3 are only stable along the axis between the orbiting bodies. L4 and L5 are local gravitational minima, but that doesn't help us here.
Edit to answer your question: No, it wouldn't be passively stable. But it could be actively stable with solar-powered motors to move mirrors, so it wouldn't need fuel.
Still waiting, BTW.