Living on Earth: September 5, 2014

Published: Sept. 5, 2014, 5 p.m.

World's Biggest Carbon Trading Market? / U.S. Preps for 2015 Paris Climate Summit / Rafting down the Unbound Elwha / Freeing the Arteries of the Planet / Beyond the Headlines / The Green School / The Quarry\nLearn more about your ad choices. Visit megaphone.fm/adchoices