A few weeks ago, we blogged about the importance of Smart Cities to promote smart sustainable cities. Half the population worldwide now lives in big cities, and this figure is expected to rise over the next ten years. Recent UN studies show that urban centers consume as much as 78% of the world’s energy and produce more than 60% of greenhouse gas emissions. This problem directly affects the quality of life of citizens; pollution, for example, produces up to 27,000 premature deaths a year in Spain. Smart Cities, therefore, are an ideal tool for developers to design applications that improve quality of life and the environment.