Peak oil was supposed to be about oil's scarcity and it devastating economic impact as prices shot through the roof. But oil demand has been falling in developed countries, for over a decade in some cases, and Fool.com contributor Travis Hoium thinks that a peak in global demand is around the corner. Erin Miller sat down with Travis to see what's driving the change. 

Erin Miller owns shares of Westport Innovations. Fool contributor Travis Hoium has no position in any stocks mentioned. The Motley Fool recommends Clean Energy Fuels, Tesla Motors, and Westport Innovations. The Motley Fool owns shares of Tesla Motors and Westport Innovations. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.