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For those asking for pictures, I didn’t take any of the plastic in the water, only the beach. It was near Laie on Oahu. It seemed current and shoreline dependen

• wisdomdata 8y ago
  On remote beaches I have visited in Australia there are large items but nothing like the amount of small items in this photo. I wonder if you could use machine learning to automatically classify plastic in photos like this based on color and shape. People could then submit all photos like this from all over the world to build a database of plastic levels, which could be used with ocean currents to provide source information. Maybe it has happened.