What can you do for Earth Hour

Join millions of people around the world and turn off the lights.

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Five cities that are improving in urban sprawl

The 20th century will be known as the time of great technological changes. The one that has the most impact on life was the automobile. We redesigned our cities around cars and created highways and parking lots and our cities spread out because they could.

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New tech can make geothermal energy as common as solar power

Geothermal power is what keeps Iceland warm during the long winter months. It is plentiful, free, and green energy thanks to Iceland's volcanoes.

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