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???? The best documentaries? They are HERE ???? https://bit.ly/2RDK6wZ ???? Subscribe! On the coasts of Guinea, salt has been harvested for centuries, but the wood needed for its extraction is starting to run out because it comes from the mangroves that have shrunk to nothing. To fight against this scourge, a French NGO, Univers Sel, has introduced a revolutionary technique that consists of recreating mini salt marshes using plastic sheeting to evaporate seawater in the heat of the sun and thus harvest the precious crystal. Women have taken charge of this activity. Since they no longer have to make a fire to evaporate the brine, the benefits they get from it are enormous both in terms of health and the environment. But perhaps most importantly, this innovation allows them to provide for their families better and to look to the future with greater peace of mind.