An excellent weekly podcast explaining economic theory and current issues in macroeconomics,  Planet Money is very interesting and accessible.

Interview with Arne Naess on Deep Ecology  1, 2 & 3

In the most recent Munk Debate Bjorn Lomborg, George Monbiot, Elizabeth May and Lord Nigel Lawson  debate whether climate change is humanity's "defining crisis".
  
A recent CBC documentary, The Carbon Hunters, explores corporate and financial interest surrounding cap and trade.  Wondering who might benefit from this system? Watch the documentary online.

Following our discussion in class about education and creativity, I highly recommend this talk by Ken Robinson called "Why Schools Kill Creativity".

Dr Tom Nudds provided this link on Adaptive Management (the strategy that he recommends for integrating science and policy).