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In 100, by Chris on November 13, 2018 at 10:35 am

As we speak an Argo float drifts. It is a thousand meters deep in the Southern Ocean, quiescent. For nine days it drifts, whim to currents. Then it pumps oil from a bladder and sinks farther, to two thousand meters depth, before reinjecting the oil and rising, over the course of six hours, to the ocean’s ice-strewn surface. Along the way it measures pressure, temperature, salinity, pH, oxygen, nitrate, and more. It sends this towering profile to satellites and public databases beyond before sinking again.

As we speak, there are 3,970 such Argos in every corner of every ocean.

  1. Are you for real!?

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