Yep, it's dumb-solution time for a nonexistent problem. This would go along with Obama's promise to block the sun's rays to end global warming. LOL! Fitting that this guy is from Microsoft. Some of these idiots must really believe the Earth is heating up (Earth hasn't warmed since 1998) to try these potentially damaging ideas. There's a liberal segment of humanity that has chosen supreme arrogance over contemplating any possibility of an organizing higher power in the Universe.
Nathan Myhrvold also thinks that he has found a cheap and reliable way to solve global warming, which does not involve upending and perhaps destroying the world's economy. The global warming solution proposed by Nathan Myhvold involves running a hose up to the stratosphere with balloons and using that hose to pump out enough sulfur particles to dim the sun's heat just enough to counteract the effects of global warming. The estimated cost would be about two hundred and fifty million dollars.
Nathan Myhrvold suggests that volcanoes and other natural processes already pump out sulfur into the stratosphere and that his scheme, if adopted, would increase that amount by only one percent. Nathan Myhrvold therefore thinks that there would not be any unintended consequences (like starting a new ice age.)