In 2021, the ArcticDefinitions of the Arctic vary according to environmental, geographical, political, cultural and scientific perspectives. Some scientists define the Arctic as areas having a high latitude, long winters, short, cool summers,... More Science Summit Week ASSW will take place in Lisbon from 20 to 26 March 2021 under the theme: “The ArcticDefinitions of the Arctic vary according to environmental, geographical, political, cultural and scientific perspectives. Some scientists define the Arctic as areas having a high latitude, long winters, short, cool summers,... More: Regional changes, Global impacts”, with the three last days reserved for the OPEN SCIENCE CONFERENCE (OSC). The call for sessions is now extended to the 22 May 2020.