From human-powered mass transit to space elevators . . . Public transport systems offer many advantages over the personal alternatives when it comes to getting large numbers of people from A... Read more
A number of cities around the world now sort their municipal trash, diverting organic matter into giant anaerobic composters that turn it into nutrient-rich soil. Such systems can be very ex... Read more
Some readers may be familiar with the car2go car-sharing system, which is now in use in several cities around the world. Users locate the closest available car via the internet or a telephon... Read more
The HybriDrive series propulsion system developed by BAE Systems is currently enhancing the fuel efficiency and cutting emissions on more than 3,000 transit buses in cities around the world,... Read more