Related but a bit off topic! What is the effect of using renewable energy, if any? the absorbing or slowing down the wind to turn windmills, absorbing wave energy, absorbing heat from solar panels, thermal pumps etc, All of these things must have some affect on weather trends, patterns etc even if only very minutely. "The butterfly effectâ€. Energy cannot naturally be created or destroyed! (or so I'm told!) Which of the renewable energy's has the least undesirable side effects, making solar panels is supposed to be quite a dirty process! other processes use things like fibre glass, Kevlar, silicon etc, much of which I'm sure is mined!