Summary: This week on Sierra Club Radio: 1) Thor Hanson, author of Feathers: The Evolution of a Natural Miracle 2) The Sierra Club's Eddie Scher on new fuel efficiency and pollution standards for cars 3) Avital Andrews from Sierra Magazine on...
Summary: This week on Sierra Club Radio: 1) Thor Hanson, author of Feathers: The Evolution of a Natural Miracle 2) The Sierra Club's Eddie Scher on new fuel efficiency and pollution standards for cars 3) Avital Andrews from Sierra Magazine on...