As U.S. policymakers consider how to tackle the challenge of greenhouse-gas constraints, the U.K.’s approach to the problem offers instructive examples.
Climate Panic Button
Ecology scientist Ken Caldeira sheds light on some radical ideas for fighting global warming.
when huge droughts in the Midwestern breadbasket are collapsing our agriculture system, ice sheets are melting, sea levels are rising, and we’re getting hit by Katrina-scale hurricanes—geoengineering might be an emergency back-up system we could deploy.
We should avoid geoengineering if possible, but we need it in our toolbox in case of catastrophe.