Each Winter, These Tiny Ocean Travelers Bury Millions of Tons of Carbon

Every year, billions of microscopic ocean drifters—copepods, krill, and other zooplankton—perform a breathtaking migration in the Southern Ocean, diving hundreds of meters into the deep. As they descend to hibernate for the winter, they carry carbon from the surface with them and, through respiration and mortality, lock it away beneath 500 meters. This newly quantified [...]