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Chris Gardner (left) takes a water sample from a glacial stream in Miers Valley while Melisa Diaz (center) and Adolfo Calero examine a sampling pipette. Pumping Iron
Science / Earth
Tuesday May 26, 2020

Cold, hard iron is on the move. Particles of the ferrous metal are trickling into Antarctica's oceans, and marine algae are gobbling it up.
In Palmer Station's aquatic lab, Hannah Oswalt passes by the two giant tanks containing the many tubs of different amphipod species growing under possible future ocean conditions. Facing the Ultimate Acid Test
Science / The Biological World
Monday May 11, 2020

Some of the Southern Ocean's smallest animals are facing big challenges. The once-exceedingly stable Southern Ocean around Antarctica is warming, and as it absorbs carbon dioxide from the atmosphere, it is also growing more acidic.

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