Smart parking uses low-cost sensors, real-time data collection, and mobile-phone-enabled automated payment systems that help drivers quickly find a parking spot, Rucks and Guevara-Stone write. The system reduces car emissions in urban centers by reducing the need for people to needlessly circle city blocks searching for parking.
The EPA is expected to set limits on greenhouse-gas emissions by new power plants. Edelstein explores the implications such limits would have on the coal and electric car industries.
From teach-to-test straitjacket to school disparity, chronic school problems that American schools face are being solved in different ways around the world.
The Metro Line 2 in Shanghai now has shelves of books which commuters can take, read on the subway, then return at another stop.
Tall buildings are a status symbol; more than 250 taller than 650 feet are in the works across China.