In Malmo, Sweden, just over the water from the Copenhagen climate talks, international transportation experts were discussing another aspect of climate change — sustainable transportation. More specifically, the third annual Transport and Climate Change conference focused on personal rapid transit (PRT). Sometimes called “pod cars,” PRT refers to a transportation network of small shuttles that carry five to six people and run on either an elevated electrical track or are suspended from a wire like a gondola. The first PRT system in the world is set to be unveiled to the public at London’s Heathrow airport this spring after years of testing. Shortly thereafter, Masdar City in Abu Dhabi will unveil phase one of its PRT system, which will be a primary mode of transportation in the city.