Tipping Point

October 16, 2014, 10am PDT
The worthy foe is not environmental regulations nor the the government or public demanding fracking moratoriums and bans. It is the falling global price of oil. Two radio reports explore how the global glut of oil affects U.S. shale oil production.
NPR
June 9, 2012, 1pm PDT
A new paper by a group of international scientists warns that the planet may be at the tipping point of causing a rapid irreversible transition to a "state unknown in human experience," reports Bettina Boxall
Los Angeles Times