I think we'll pull through it, but unless the science is obscenely exaggerating, there still seem to be major issues beyond merely getting the government to do stuff.
The aerosol blanket effect is an example of this: if there is a ceasing of certain emissions, the aerosols (just airborne particulates, presumably larger than mere molecules) drop off significantly faster than the actual greenhouse gases (mere molecules).
Where greenhouse gases, as I understand things, prevent solar radiation from leaving our atmosphere once it has entered, aerosols, being bigger, prevent higher wavelengths of solar radiation from even entering at all.
So in ceasing emissions, and in aerosols dropping off way before greenhouse gases, we will enter a situation where the solar radiation that has already been getting past the aerosols is still trapped in the atmosphere, and the higher wavelength radiation can now enter as well, which would ostensibly heat things up further.