With the world’s population at 7 billion and counting, a real challenge is posed to city and urban planners, architects and engineers: how to design and construct sustainable and intelligent cities with booming populations. Though difficult, innovative solutions abound. In partnership with  architects with a flare for sustainability and like-minded engineers to build these structures, urban planners such as Alex Steffen and Sharon Nunes see real potential for smart, efficient cities. Outside of cities, engineers are dreaming up efficient solutions to such problems as water filtering. Change is in the air. Its up to all of us to channel our inner Captain Planet to make a difference.

Urban Planning

Alex Steffen Sees A Sustainable Future

Shadow Cities

Stewart Brand Proclaims 4 Environmental Heresies

Interview With IBM’s VP of Smart City Strategy, Sharon Nunes

Engineering

Amy Smith Shares Simple, Lifesaving Design

Filthy Water Turned Drinkable