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… challenges for policy- makers. Transport, housing, energy and The world population is steadily increasing, … 2010. Source: Worldwide Electricity Production from renewable energy sources, Edition 2010, Eurobserv'ER, EDF, … 2010. Source: Worldwide Electricity Production from renewable energy sources, Edition 2010, Eurobserv'ER, EDF, …

… these batteries are in motorized vehicles, for storage of energy generated by photovoltaic cells and wind turbines, and … appliances (UNEP, 2004). The growth in the use of renewable energy sources and the concomitant need for storage …

… in a mobile phone can be recycled or recovered as energy. The remainder can be used in inert construction … The goal of sustainability is to ensure that the non- renewable resources are not wasted but kept in the material …