Defining a smart city is relative to what we believe a smart city should be. Boyd Clark defines the term in his article, The Smartest Cities in the World, as “a key mechanism for cities to find innovative solutions to the challenges that they are facing.” This includes issues such as transportation, energy usage, jobs, food and water. Among some of the smartest cities were, Copenhagen, Barcelona, Vancuver and Los Angelos. Cities were also judged on their current plans to become smarter cities and their movement in that direction. Some notable innovations that define these cities include: more green transportation such as walking and biking, high renewable resource energy usage, and the most smart phone ownership and usage.