Living on Earth: February 15, 2013

Published: Feb. 15, 2013, 5 p.m.

Obama Doubles Down on Climate Action / Starving Polar Bears / The Thrills and Spills of Backyard Hockey / Rinkwatchers and Citizen Climate Science / Women & Population / Louis Agassiz / Earth Ear: Daybreak at Igua\xe7u\nLearn more about your ad choices. Visit megaphone.fm/adchoices