The importance of icebergs for North Atlantic cold events
Svante Björck is interviewed by Swedish Radio (SR) on account of an article in Nature by Stephen Barker et al.: Icebergs not the trigger for North Atlantic cold events (10.1038/nature14330). Before it was believed that the melting of icebergs caused the currents in the ocean to change, which led to a change in temperature. The researchers have now found that icebergs may form after the cold event started, and hence icebergs are not the triggers.
- One can wonder what roll icebergs and sea ice has in the disturbance of the North Atlantic circulation. And this study shows that maybe they do not matter so much, says Svante Björck to SR.
This is something that may have to be incorporated in the climate models, he suggests. Svante also says that water from melting glaciers probably will have more impact on rea currents than the icebergs in the future.