In light of ongoing increases in oil prices, the hybrid vehicle is being considered by many municipalities as one way to economize on transportation costs.

Portland, Oregon, has been employing sustainable management principles to guide the city's development and operations for the past thirty years.

An ordinance of the Manhattan Beach, CA council, adding regulations to the Manhattan Beach municipal code prohibiting plastic carry out bags.

Highlands County, Florida, opened the state’s first-ever landfill-gas-powered asphalt plant in 2008.

Airports serve not only as the hub for air travel but also as important economic engines.