The Long Now Foundation (Video): David Keith: Patient Geoengineering
„“Temporary, moderate, and responsive” should be the guidelines of responsible geoengineering, in David Keith’s view. For slowing global warming, and giving humanity time to bring greenhouse gas emissions down to zero (and eventually past zero with carbon capture), he favors the form of “solar radiation management” that reflects sunlight the way volcanoes occasionally do—with sulfate particles in the stratosphere.“