What other alternate energies have we got besides wind,sun,gas?
I take it you mean renewable forms of energy. The world desperately needs to prevent global warming, which has at least two causes. One cause is the release of polutants from carbon fuels, including coal and gas. The other cause is simply the release into the atmosphere of fossil energy previous locked up in mineral form: nuclear energy is included in this category because in the last analysis it releases energy from uranium ore. The two big, currently available, ones that you have not mentioned are tidal energy – it is estimated that the United Kingdom could get twenty percent of its energy from wave power – and thermal energy from the ground – Iceland already exploits this where it is easy because of geysers. You have also not mentioned biofuels, including wood, i.e. burning vegetable matter that has captured solar energy via the photosynthesis process (but we then run into problems of limited land resources). The dream of the nuclear energy is to develop practical nuclear fusion pla
