For technologists, building smart cities is not an aspirational goal but a matter of necessity. The World Bank estimates that 70% of the world's population will be living in urban areas by 2050, up ...

Editor’s note: These are big, complex topics — so we've spent more time exploring them. Welcome to GT Spotlight. Have an idea for a feature? Email Associate Editor Zack Quaintance at ...

Forbes contributors publish independent expert analyses and insights. Dianne Plummer is an Energy Consultant and Certified Energy Manager. Since 2011, the Smart City Expo World Congress has stood as ...