T1-4 Polar climate feedbacks, amplification, and teleconnections, including impacts on mid-latitudes

Through a combination of an emerging global warming signal, natural variability, and especially one-way non-linear feedbacks such as loss of sea ice and land changes, the Arctic and the Antarctic Peninsula are showing large climate changes which are occurring earlier than anticipated from anthropogenic contributions alone. These changes are beginning to impacting mid-latitude ocean, land, and atmospheric circulation and climate, and these impacts are expected to increase over the next decades. We solicit papers on all aspects of these changes; for example:  natural and anthropogenic forcing of Arctic change; mediation by albedo, ocean heat storage, snow, permafrost and ground cover, clouds, and sea-ice changes;  causes for polar amplification  of temperatures; and mid-latitude impacts induced by late summer sea ice loss, teleconnections, and other polar changes.