Scientific dissemination articles

The Impact of Climate Change in the Baltic, J. Piskozub

Jacek Piskozub – Institute of Oceanology, Polish Academy of Sciences; Sopot, Poland

pp. 69-82 |  Article Number: 6
Published Online: March, 2018


The ongoing climate change affects all regions of the world, including the oceans and their coastal areas. The Atlantic Ocean and the coastal, nearly land-locked Baltic sea, are no exceptions. The region of the Baltic Sea experiences both increases in temperatures and precipitation changes, however the rate of change varies for different regions and seasons. The increase of the sea level in the North Atlantic region, including the Baltic, is generally similar to the global average, although it is regionally varied by the effects of circulation changes, proximity of the Greenland ice-sheet and isostatic post-glacial rebound. These changes will continue to happen and will most probably accelerate in the next decades. The melting of the Greenland ice sheet will probably reduce the salinity of North Atlantic surface waters, weakening the Atlantic Meridional Overturning Circulation, further affecting the sea level increase. An increase in precipitation would make the briny Baltic Sea even fresher, although the sea level rise could, in a way, mitigate this by deepening the Danish Straits. Some future effects of anthropogenic global warming, including atmospheric circulation and storminess changes are still difficult to constrain.

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