http://downloads.economist.feedroom.com/podcast/t_assets/20091023/20091023_clark_44XE.mp3?site=economist&cid=8a2059e9ac993b05e749291542c9e65bda3af5bf&sid=31effb4c97820408562aca0c0201bc227d53be9c&pid=3559cf4a61194a6ce339ad5741b7ecb75c188719 Greg Clark on the environment http://feedproxy.google.com/~r/economist/audio_all/~3/cNstUJCcZWc/20091023_clark_44XE.mp3 2009-10-23 http://www.economist.com/media/rss/EconPodcast.jpg