The rise of the Arctic: Intergenerational personal perspectives: This article belongs to Ambio's 50th Anniversary Collection. Theme: Climate change impacts.

Theme: Climate change impacts Terry Callaghan was a lead author of the snow and permafrost chapters of the assessment and Margareta Johansson, a research assistant in the ACIA process, became a lead author too. The rise of the Arctic: Intergenerational personal perspectives: This article belongs to Ambio's 50th Anniversary Collection. Communicating scientific understanding globally Terry Callaghan was the lead author of various chapters in the ACIA report and, together with a small team, ensured that ACIA results were incorporated into the IPCC 2007 Polar Regions Chapter (Anisimov et al. [3]). [Extracted from the article]