Fundamentally this is an appeal of despair
If you want to read more about Allen's views on sequestration, here is a bunch of stuff
Eli is, if anything, less optimistic, but the Bunny is a hell of a lot less optimistic about sequestration, an engineering problem without real answers, many flaws, a lot of unknowns and enormous costs in money and energy. Fundamentally it is more of a hail Mary than geoengineering, and unfortunately beloved of those who want no real action.
While Allen concludes that
Would that there were a simple solution.
The Rabett concludes sadly that sequestration is but a fairy tale, so borrowing from Saturday Morning Breakfast Cereal Comics, Eli would like to tell the Bunnies another.