ECOLOGICAL

Article-No.: 4665876

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Our future lies in renewable energies. The fossil fuels coal, oil and gas will be used up within the next 50 to 300 years and are ecologically questionable just like nuclear energy, too. The sun, however, provides more energy than we need.

Article-No.: 46 64224

Weitere Informationen zu: DVD: Wind Energy - Renewable Energies I

Article-No.: 46 58334

Weitere Informationen zu: DVD: Source of Energy – the Sun- Yesterday - Today - Tomorrow