They are Totally Insane
" Some scientists are skeptical
"I have to be very skeptical," said Kevin Trenberth, a scientist at the National Center for Atmospheric Research. "Focusing on dehumidifying the stratosphere by itself makes no sense to me."
Michael Mann, a meteorologist at the University of Pennsylvania, said that "in this case, the authors concede a large number of caveats, one of the most critical being the potentially limited lifetime of the effect. Like many of the proposed inventions, it would have to be done regularly to keep up the offsetting cooling effect, and meanwhile the CO2 that is accumulating in the atmosphere is there for the long term."