Sustainable world

Describes how different types of transportation harm the planet and explains how people can work together to minimize the damage.

Discusses the ways in which traditional farming systems have damaged the environment, and looks at alternative, sustainable ways to provide enough food for the world's people without further injuring the Earth.

Looks at some of the environmental problems caused by human activity, including pollution, deforestation, and climate change, and provides an introduction to sustainable development methods designed to meet the needs of people while protecting the environment.

Discusses the need for sustainable cities, the problems, ideas, solutions, and future of livable and healthy cities.

Explains how waste impacts the environment and discusses how people can work together to reduce the amount of waste produced and deal with the problems it causes.

Provides an introduction to sustainable energy, or renewable sources, discussing the depletion of traditional energy sources such as coal and oil, and looking at alternative ways to provide energy without harming the environment.