Episode 38 Histories of Canadian Environmental Issues, Part 8 – Tar Sands: 29 May 2013 [audio: http://niche-canada.org/files/sound/naturespast/natures-past38.mp3][01:38:37] The northern Alberta tar sands (or bitumen) resource is the most well-known environmental issue in Canada today. Representing both a significant component of the nation’s resource economy, and the single greatest threat to […]