BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20260627T034550EDT-2852gUvuGO@132.216.98.100 DTSTAMP:20260627T074550Z DESCRIPTION:Arctic regions are experiencing high degrees of environmental\n change\, including thinning of sea ice\, increased deposition of\nairborne pollutants\, as well as evidence of a longer growing\nseason. In order to assess the present rate and effect of these\nchanges to the terrestrial s ystem\, Professor Douglas and colleagues\nexamine lake sediments (paleolim nology) to reconstruct past natural\nbaseline conditions.\nTheir investiga tions of aquatic ecosystems reveal that these\nsystems are undergoing impo rtant changes in their physical\,\nchemical and biological characteristics . Understanding these\nchanges provides insight into what future arctic co nditions may\nprevail. The  speaker uses examples from her research on lak es\nand ponds in the Canadian High Arctic to show some of the practical\na pplications of paleolimnology in studying regional climate change\,\narcha eology\, and airborne pollutants.\n DTSTART:20110707T180000Z DTEND:20110707T190000Z SUMMARY:Broadcast — Cutting Edge Lectures in Science: Environmental change in Canada's Arctic: how different is the present from the past? URL:/channels/event/broadcast-%E2%80%94-cutting-edge-l ectures-science-environmental-change-canadas-arctic-how-different-present- -173133 END:VEVENT END:VCALENDAR