Living on Earth: In a bid to avoid some of the worst effects of climate change some scientists are advocating possible strategies to artificially alter the climate. But critics warn of unforeseen and dangerous consequences of any atmosphere altering intervention. David Keith from Harvard University and Clive Hamilton of Charles Sturt University in Australia debate the case for each side with host Steve Curwood.
Transcript
CURWOOD: It's Living on Earth, I'm Steve Curwood. Since we started farming in the Fertile...