The document discusses the concept of eco-cities. It defines an eco-city as a city built to live within the means of the environment by eliminating carbon waste, using renewable energy, and incorporating the environment into the city. It notes eco-cities also aim to stimulate economic growth, reduce poverty, and improve health. The concept originated from the organization Urban Ecology, founded in 1975, which worked to reconstruct cities in balance with nature. Achieving an ideal eco-city involves minimizing environmental impact, reducing waste and emissions, and maintaining green spaces and air/water quality among other criteria. Methods discussed to achieve eco-cities include urban farming, green building standards, sustainable transportation, and practical solutions implemented in