City Mayors

Guangzhou, China's public transit network barely existed back in the late 1980s, when the Guangzhou Metro Corporation (GMC) was created to oversee its creation. Today they employ over 17,000 people and in 2010 GMC carried 1.18 billion passengers.

Markus Berensson writes about the increasing need for regional governance that can make decisions, and the consequences to a region without that governing body.

The question of whether graffiti is art or vandalism is facing a vote in Bristol, U.K., the hometown of famed graffiti artist Banksy.

European cities are experimenting with trains that can switch from heavy rail (to reach suburbs on existing tracks) and street-running fixed link systems (to reach city centers).

The American Lung Association has released its annual list, and says that despite a new interest in green initiatives, the air in many cities has gotten dirtier in the past year.