[ByteJockey]

They aren't talking about sufficiently advanced technology (magic). They're talking about things we can already do, but have serious trade offs.

The most common suggestion is to add particles to the atmosphere that reflect sunlight. I think sulfur was first proposed, but I think study of calcium carbonate has been ongoing to avoid the ocean acidification issues that sulfur presents.

[Fricken]

The imaginary part is sufficient determination.

[ByteJockey]

My understanding is that the costs are low enough to be done by a single country unilaterally.

At least at first. If we start doing it, and don't reform our ways, it gets progressively more expensive.

Probably a nice stop gap if we ever get our shit together, but are staring down some really bad after effects.