He studies plankton, the smallest organisms in the ocean, from the Antarctic peninsula to Greenland, looking for signs of how the oceans are changing. Oceanographer Benjamin Van Mooy also created new techniques that helped reveal more precise information about the link between plankton and the changing oceans. The researcher is one of three New England 2024 MacArthur “Genius” Fellows. We speak with Benjamin Van Mooy for our annual series, “The Genius Next Door.”