Recent increase in dimethyl sulfite emission from seasonal sea ice area in the North Atlantic reconstructed from SE-Dome ice core, southeastern Greenland.

Abstract

Dimethyl sulfide (DMS), which originates from ocean phytoplankton, plays an important role in cloud formation over the marine atmosphere. We revealed the emission of DMS in the North Atlantic during 1960–2014 using an ice core drilled at the Greenland Ice Sheet. Our findings suggested the summer DMS emission after the 2000s was 3–6 times higher than that before the 1990s along the southeastern coast of Greenland. We concluded that the increase in summer DMS emissions resulted from the early retreat of the sea ice under global warming.