Osmosis - the Next Big Step for Clean Energy?

Solar Power is becoming increasingly inexpensive, and efficient.  The same goes for wind power, but a natural limitation of both systems is that on some days the sun doesn't shine, and on some days, the wind doesn't blow. But researchers at the Ecole Polytechnique Fédérale de Lausanne (EPFL) say they have found a simple way to produce a lot of energy, anywhere a river meets the sea. Their work is being published in the journal Nature and it's an incredibly...

© La Voix de l'Amérique - mercredi 13 juillet 2016