Led by the companies Mobike and Ofo, so-called "dockless" bike sharing is all the rage in Chinese cities. Unlocked by app, the bikes can be left anywhere for the next user to pick up. There have been some hiccups.
Ersatz versions of architectural icons like the Eiffel Tower, the London Bridge, or the Statue of Liberty are popping up around the world. Are you ready to test your skills in parsing the real from the fake?
Headlined by vertical (and horizontal) sprawl in China, India, and elsewhere, the global building boom requires vast quantities of concrete and asphalt. And to get those materials, sand must be taken from the environment.
Before 20th century urban renewal programs, U.S. cities were often overcrowded fire hazards and breeding grounds for tuberculosis and other airborne diseases. However, many of these programs also did severe damage. Is there a better way?
After a period of modernization and urban growth unrivaled in human history, several forces promise a slump, or at least a slowing. Maybe it's time to improve existing cities, not keep building new ones.
The latest from China: a concept for street-straddling buses that cars could pass underneath. The giant vehicles could improve worsening traffic and already-dire pollution levels, taking the place of many conventional buses.
Geographer Duncan Smith mapped the predicted trajectory of worldwide urban growth from 1950 through 2030. Concentric circles of different shades show where and when growth was (or will be) the most dramatic.
China has added to the ranks of the world's megacities at a ridiculous clip. Even so, inland cities have tended to languish in anonymity. With new policies and economic orientations, the Chonquings are starting to compete with the Shanghais.
While they look clean and green on the drawing board, Asia's planned developments might be nothing more than cloned commercialism set in concrete. By undermining local culture, this 'smart city' approach may also prove unsustainable.