Global Warming and the Onion
http://www.theonion.com/content/node/32207
Rainforests and the Onion
http://www.theonion.com/content/node/31634
The Permaculture Rap
http://www.youtube.com/watch?v=_5LjKhlJucw&eurl=http%3A%2F%2Fpermaculture.tv%2F&feature=player_embedded
Will Allen and the Urban Farmer
http://www.nytimes.com/2009/07/05/magazine/05allen-t.html?ref=magazine