Footprint Reading Library - Level 8 3000 C1 - Alternative Energy: American English, de Waring, Rob. Editorial Cengage Learning Edições Ltda., capa mole em inglês, 2009

Descrição

Global warming and the overuse of available traditional fuels have created an environmental crisis. In, Colorado, however, scientists in the windy Rocky Mountains have found alternative fuel sources that could provide a solution.