This strip is deadly serious. Disasters are not amusing and are often gaping chest wounds, not merely irritating. Everyone of the scenerios Wally describes could happen or have been covered in the news or predicted by film makers. SA uses his skills to educate the world about the precarious future faced by the common folk. The alternatives are not always pretty or funny.
I would, however, challenge the asteroid solution. Hopping on a Flybar would be a better idea than running in place to take advantage of the rotating planet.