Reposting the article, this time with the proper, direct link
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In the Deepest Ocean Reaches, a Potent Pollutant Comes to Rest
“Surprising amounts of mercury settling into deep-sea trenches may provide a fuller picture of the metal’s path through the environment, but pulling it to the surface is no easy feat.”
https://eos.org/articles/in-the-deepest-ocean-reaches-a-potent-pollutant-comes-to-rest