Summary #1016

New proof of ocean acidification, found thanks to 150-year-old samples from a museum

sciencemag.org
  • Analysis of 150-year-old plankton against new plankton, collected from the same location, provides new proof for increasing acidification of oceans.
  • By creating precise 3D images of the shells researchers found that on average, new plankton shells were 76% thinner than the 150-year samples.
  • While acidification is most likely to blame, study authors admit that other factors play a role, like warmer water and lower amounts of oxygen.
  • This study is significant because, for the first time, it involves samples from before the 1950s, when the pH of oceans wasn’t yet on a downward trajectory.
  • This proves that sometimes the most interesting study materials can be found in museums.

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