ELECTRIC BLUE: New projects aim to generate energy by harnessing the salinity-balancing effects where freshwater rivers flow into salty seas. © NASA/ROBERT SIMMONFrom Scientific American:
Two pilot projects are testing the potential of "salt power," a renewable energy that relies on the differing salinities at river mouths to make watts.
In the hunt for alternatives to polluting and climate-warming fossil fuels, attention has turned to where rivers meet the sea. Here, freshwater and saltwater naturally settle their salinity difference, a phenomenon that two pioneering projects in Europe will try to harness to generate clean energy.
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