My idea has to do with the solar energy. Solar energy is energy from the sun, in the lighting sufficient area, the solar energy supply continuously; the production process will not have any environmental pollution, it will not use any other earth resource or causes the global warming. Also the solar energy is a good energy similar to the water power or the wind power. If we have it on top of OCAD's roof, it will support the energy we use. However, it will be a big problem to afford so we have to do some fun raising or we can have everyone to recycle their useless stuff and exchange for money to help OCAD raise the money.
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