Traditionally, hotdogs were cooked over open fires., Fires have the benefit of being easy to assemble and able to be produced in most environments., However, cooking on open fires destroys 2 billion tonnes of wood annually, which is approximately one fifth of global energy consumption (World Wildlife Fund, 2011)., Also, each family dependent on open fires for cooking creates 2 tonnes of carbon emissions annually (Saunders, 2009)., Thus, this power source does not fit the company's requirement that the cooker be environmentally-friendly..

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