Engineering Earth’s Climate?
Episode 5 | 10m 56s | Video has closed captioning.
Scientists are worried that soon, simply reducing carbon emissions won’t be enough to even slow global warming. A U.N. panel has said the world will likely need to “geo-engineer” the climate. That’s an idea that dates to the Cold War, when a different kind of global challenge gave rise to fears of a “nuclear winter.”
Problems Playing Video? | Closed Captioning