And to put that number in context, the “net anthropogenic component” of radiative forcing appears to be about 1.5 W/m^2 (according to an image in the wikipedia article), so canceling out the anthropogenic component would have an ongoing cost of 1.5 billion per year.
For others who weren’t sure what “reduced forcing” refers to: https://en.wikipedia.org/wiki/Radiative_forcing
And to put that number in context, the “net anthropogenic component” of radiative forcing appears to be about 1.5 W/m^2 (according to an image in the wikipedia article), so canceling out the anthropogenic component would have an ongoing cost of 1.5 billion per year.