This will depend on what size of fan you are using and how much energy it uses. If you plan to substitute ceiling fans for air conditioning, you will likely be saving some money because air conditioners use an awful lot of energy.
Absolutely. Solar collectors give off no air pollution, so if forms of energy generation that create air pollution (like the burning of coal) are replaced by solar collectors, air pollution is...
Don't cut the rainforest down and you will help preserve the majority of the earth's natural wood and fresh oxygen generated from the vast amount of trees in the rainforest
Trees that are cut down are usually used as materials to build houses, make paper and like bamboo can be put in food. Alternate ways of creating these materials should be created because...