One of the most interesting aspects of sustainable developments to me is the complexity of the equations involved. My recent post about sailing ships implies that the wind may be the answer to all of our energy problems, but that's not always the case. Take for example the Energy Ball. If only everyone would install a windmill on their house we could ween ourselves off of oil, right?
Well read on, you have to take into account the placement and energy produced compared with the price to make the windmill to get the full picture. In this case, windmills could be harming the environment!
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