CNN

Protecting the city from future hurricanes and flooding will take decades and cost billions.

While a recent study observed climbing obesity rates across the county, Oregon saw no change. A study attributes this to the state’s strong emphasis on bicycling, walking, and urban design.

Census estimates indicate that Texas is the fourth state where minorities account for most of the population.

According to a Stanford University study, wind is the fastest growing source of energy in the world.

At least 40 are reported dead, hundreds injured as four bombs explode in London's transport system.

London beats Paris to host the 2012 Summer Games, bringing the Olympics to the British capital for the first time since 1948.

U.S. Supreme Court rules that local governments may seize homes and businesses for private economic development.

Turn your gaz-guzzling car, truck, or SUV into a zero-emissions vehicles with no special equipment.

Dann Seo teaches others how to be environmentally friendly while not losing flair.

FBI identifies eco-terrorists as the nation's top domestic threat.

Smaller communities who rely on the the economic power of local bases vow to fight plans to close their home military basess.

The race to the tallest tower falters.

Urban centers feel the impact as new residents move beyond the traditional suburbs.

A United Nations' report concludes that areas already damaged by humans suffered more than areas with healthy ecosystems.

Cities from around the world -- including the U.S. which rejected the Kyoto treaty -- will form a network to share information about climate change.

Montana, which has no sales tax, wants Wal-Mart, Target, and Costco to pay a tax to offset the state's welfare costs related to the big-boxes' poor labor practices.

High-end "lifestyle centers" are appearing all over the country.

Wide roads, speeding traffic and a lack of crosswalks or sidewalks can make walking a deadly activity.

Hispanics and blacks lost nearly 27 percent of net worth between 1999 and 2001

A government-sponsored explosion in the use of scooters by the elderly highlights need for sidewalks.