Engineering Earth’s Climate?

Is geo-engineering the climate an answer to global warming? More

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.”

AIR DATE 10/21/19