Sea ice around Antarctica expanded for several decades until a dramatic decline in 2015. The reasons behind this are revealed by research from the University of Gothenburg. Antarctic sea ice plays a crucial role in the ecosystem and physical environment of Antarctica and the Southern Ocean. Since the ice reflects the sun's rays and blocks... Sea ice around Antarctica expanded for several decades until a dramatic decline in 2015. The reasons behind this are revealed by research from the University of Gothenburg. Antarctic sea ice plays a crucial role in the ecosystem and physical environm... [3053 chars]