State of the Planet

News from the Columbia Climate School

Microplastics Are Chemically Active, and Could Cause Biological Harm

A new study found that when microplastics contact water, their surfaces can become chemically reactive. This could be how they get us sick.

Microplastics in a test tube against a blue background

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Blue banner with kids and Earth photos. Text: "Lamont-Doherty Earth Observatory Open House, Saturday, October 17, 2026, 10am-4pm.

On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!

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