Arctic Frontiers (AFT) holds its 5th annual conference in Tromsø from 23-29 January 2011, Norway, with the title "Arctic Tipping Points". The scientific section of AFT 2011 takes place from 26-28 January 2011, and is given the title: "The Arctic in the Earth System perspective: the role of tipping points " The scientific section is divided into 3 parts: 1. A joint and multi disciplinary first day with 10 invited speakers ending with a panel and plenum debate; 2. Four parallel sessions (included a poster session) on the second and third day; 3. A summary session ending with a plenum debate The parallel sessions address 4 connected, interwoven and interdisciplinary themes: . Sea ice and oceanographic perspectives . Marine ecosystems and fisheries . Socioeconomic and institutional perspectives . People of the North Interested scientists are invited to submit abstracts to one of these four sessions for both oral and poster presentations. Deadline for submission of abstracts: 25 october 2010 For more information download the complete Call for Papers and the abstract submission form on the AFT homepage www.arcticfrontiers.com. With kind regards, Arntraut Götsch, conference secretary