Co-Chairs: Chris Derksen (Environment and Climate Change Canada)

Stephen Howell (Environment and Climate Change Canada)

All components of the cryosphere are vulnerable to rising temperatures associated with climate change. Warming during recent decades has already led to detectable changes: glaciers are thinning, summer sea ice is disappearing, permafrost is thawing, and snow cover duration is shorter. For some variables, however, changes are difficult to quantify due to uncertainties in observational records and poorly constrained model performance during the historical period. These factors complicate the assessment of associated risks and impacts from a changing cryosphere. For example, observation and modeling of permafrost thaw and associated landscape changes are subject to considerable uncertainty, challenging local risk assessment and adaptation. This session invites submissions across all cryosphere components. Contributions could address observed changes to the Arctic cryosphere, model projections, and the effects of cryosphere change on natural and built environments including societal impacts.