By Jenny Soffel, for CNN
(CNN) — Houston may be a city built on the profits of oil and gas, but it has a green dream.
The dream is to create a city that is “more liveable, walkable and bikeable,” according Laura Spanjian.
Spanjian has been the director of sustainability for Houston since 2010, when current Mayor Annise Parker was elected. They have launched several sustainability initiatives under the “Green Houston” program and Parker says the city has cut its greenhouse gas emissions by a quarter.