Dan Schrag is the director of the Harvard University Center for the Environment and a MacArthur “genius” grant winner. He helped set up Harvard’s geoengineering program and sits on its advisory board. “Some have expressed consternation at the prospect of engineering the climate for the entire planet,” he has written. “Ironically, such engineering efforts may be the best chance for survival for most of the earth’s natural ecosystems—although perhaps they should no longer be called natural if such engineering systems are ever deployed.”
