Environmental Outlook: Geoengineering
Artificial trees to capture carbon, billions of tiny mirrors to reflect sunlight, sulfate to whiten clouds: promise and pitfalls of large scale radical ideas for addressing climate change.
Nicholas Chair of Global Environmental Change and a professor in the Biology Department, Duke University
Founder and CEO, The Climate Response Fund
author of "Hack the Planet: Science's Best Hope- or Worst Nightmare - for Averting Climate Catastrophe"