Astronauts on the International Space Station must protect their resources--their lives depend on it. The same is true about Earth. For the planet to survive, we must also conserve water, air, food, and energy, and cut down on waste. '...
Green technology
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Auteur:Pruessen, Linda, Williams, DaveSommaire: -
Auteur:Yudelson, JerrySommaire:Buildings and their associated systems are the largest source of greenhouse gases in the world. The 2030 Challenge aims to produce zero-net energy from new North American construction by 2030 while achieving a 50 percent reduction in...
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Auteur:Greer, John MichaelSommaire:Merlin, Gandalf, Voldemort - these well-known sorcerers from popular culture are famed for their amazing spells and spectacular magical powers. In ancient times however, a wizard was actually a freelance intellectual whose main stock in...
