An interactive map of the United States that gives information about each state's wind power potential.

This animated illustration shows how a wind turbine can generate electricity for homes and communities.

A collection of photographs highlighting alternative energy sources from fields of wind farms to towers of solar panels.

Learn about the many different energy resources available from our Earth. Find out the pros and cons of each type: both renewable and nonrenewable.

This photo shows a huge wind turbine used to harness wind power for energy. The massive structure dwarfs the person visible in the photo and stands against a beautifully blue sky background.

An invisible, ancient source of energy surrounds us-energy that powered the first explorations of the world, and that may be a key to the future. This map shows you the delicate tracery of wind flowing over the US.

Observe various severe weather phenomena in this image gallery from WGBH. Weather is the combination of factors -- temperature, wind, snow or rain, and sunlight and clouds -- that happen in a specific place at a specific time. Sometimes...