What is green power?: why we need power and why it needs to be clean
Hydro electricity: using the power of moving water to spin turbines
Ocean power: making electricity from the waves and the tides
Solar heating: using the sun for heating homes and more
Solar electricity: high-tech materials that use the energy in sunlight
Wind turbines: clean power from energy in the wind
Nuclear power: a possible answer to global warming problems
Geothermal energy: using heat from the depths of the earth
Biofuels: renewable energy from plants and animal waste
Cleaner highways: vehicles running on alternative energy supplies
Saving energy: easy and money-saving solutions to a greener future
Coming soon?: New power possibilites, from power towers to fusion reactors
Discovery timeline progress of power, from early steam engines to the solar age
Glossary terms and concepts explained
