The impact of buildings and cities

"More than half the world's population live in cities, and that number is rising. Find out how we can create buildings and cities without harming the environment in this informative title. The growth of cities can lead to overcrowding, pollution from transportation and factories, and the release of greenhouse gases from buildings. Case studies show how scientists, architects, and planners are investigating how to build more energy-efficient houses and more sustainable cities"--Provided by publisher.