Saving the World, One Light Bulb at a Time Why Conservation Is the World's Best Energy Source

Warnings of a coming climate catastrophe caused by greenhouse gas emissions are growing louder. But the pressure for economic growth around the globe is pushing gas and oil prices higher. The solution seems deceptively simple: conserve energy by using it more efficiently. So why aren't more people doing exactly that?
A satellite image of Europe at night: Residents of Western Europe's industrial nations waste enormous amunts of electricity, petrol, heating oil and gas. Without any noticeable decrease in quality of life, consumers could reduce their energy consumption by one-fifth.

A satellite image of Europe at night: Residents of Western Europe's industrial nations waste enormous amunts of electricity, petrol, heating oil and gas. Without any noticeable decrease in quality of life, consumers could reduce their energy consumption by one-fifth.

Foto: AP/ NASA