Arctic Ocean not likely to become a significant carbon dioxide sink



One effect of declining summer Arctic sea ice extent in a warming climate is that it would expose more surface water to the air, potentially allowing for more air-sea gas exchange and thus possibly improving the Arctic Ocean's ability to act as a sink for atmospheric carbon dioxide (CO2). However, some recent research has shown that the southeastern Canada Basin in the Arctic Ocean actually has a relatively weak capacity to act as a sink for atmospheric CO2.