A filter that turns saltwater into freshwater just got an upgrade
Making the material smoother prevents it from getting gunked up quickly
![desalination plant in Dubai](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/08/081418_mt_desal_feat_free.jpg?fit=860%2C460&ssl=1)
SMOOTH MOVE Hundreds of millions of people rely on desalinated water from plants like this one in Dubai. A new-and-improved salt-filtering material could help make freshwater production more affordable.
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