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 A new database called the Global Tailings Portal pulls together information on 1,700 dams that store waste, or tailings, from mines around the world.Around 100 publicly traded companies have shared information about their dams with GRID-Arendal, the Norwegian foundation that developed the database.The portal’s creators say that much of the information, including the size, location, and risk factors associated with the included dams, hasn’t been publicly available before, even as catastrophic dam failures continue to occur.