BBC

A group of 200 volunteers with GPS devices will walk the streets of Atlanta this weekend to create a community-owned map of the city and its intricate details.

Organizers of next year's Winter Olympics in Vancouver are hoping to add a green sheen to the international event, but some critics say they aren't doing enough to offset the huge carbon footprint the Olympics will carry.

A new study from the UK Royal Society has determined that geo-engineering techniques are technically feasible approaches to address high levels of carbon dioxide in the atmosphere and the resulting global warming.

This video from the BBC looks inside some of the 200 urban farms that provide vegetables for Havana and the rest of Cuba.

In order to clean the air in Calcutta, officials have begun enforcing a rule that removes all vehicles manufactured before 1993, mandated by the city's High Court.

West Point, Georgia began to decline when the textile industry moved out. Now, it's experiencing a renaissance as a new car factory moves into town, bringing 20,000 jobs by 2014.

A new mapping project is creating a comprehensive 3D image of the catacombs beneath Rome.

Levels of lithium in the municipal water of Oita prefecture in Japan have been linked to lower rates of suicide, according to a new study.

The recession digs into Dubai, where property prices fell 41% in the first three months of 2009.

The Spanish government is moving forward with plans to build the largest casino and entertainment complex in Europe

Environmental issues are becoming a growing concern in China, and officials there seem ready to begin addressing them.

Residents in Venice, Italy, are upset over a plan by the city to accept a $2.7 million subsidy from Coca Cola in exchange for placement of soda machines throughout the historic city.

Theft and vandalism have crippled the citywide bike rental system in Paris, leaving operator JCDecaux uncertain of the increasingly expensive program's future.

This three-part series from the BBC looks at bicycles in the modern world -- from Paris to Uganda to India.

Light reflecting from streets and glass buildings in cities have been found in a recent study to disrupt animal behavior.

The income gap between rural and urban residents in China has increased again in 2008, and has been attributed to other social inequities in the growing country.

Floods of British expatriates moving to Mumbai are finding the city practically as competitive and sometimes even more expensive than home.

Mexican President Felipe Calderon has announced a $4.3 billion plan to improve the country's infrastructure, schools and housing stock.

This article from the BBC looks at the new face of bridge development and argues that crossing rivers is no longer the main reason they're built.

A new high-speed rail line has opened in China, just in time for the Olympics.