In his recent book, ‘The Energy of Slaves,’ award-winning Canadian journalist and author Andrew Nikiforuk argues that cheap oil prices have sparked a culture of overconsumption and dependence on oil. This dependence, he claims, is at the root of environmental and political challenges we face today. Nikiforuk will deliver the keynote address at the Illinois Renewable Energy and Sustainable Lifestyle Fair this weekend. But first, he joins us to talk about renewable energy initiatives, challenges and hopes. (Photo AP Images).