Signal: reduced cryosphere (snow and ice)
GreatLakes-ice-cover-trends

Great Lakes ice cover down 71% since 1973

by on 20. Mar, 2012 in Uncategorized

there is an overall decrease in Great Lakes ice cover over the past 40 years, with a decrease in variability as well. This graph shows the downward trend in ice cover area (in square kilometers) since 1973.[2] The total loss in area was 71 percent for all of the Great Lakes. What are we learning [...]

arctic_cryosphere_forcing_difference_lrg

Melting snow and ice warming planet faster than expected: 10⁹ GigaWatts

by on 25. Feb, 2011 in Uncategorized

Mark Flanner at the University of Michigan and his collaborators used satellite data to measure how much changes in snow and ice in the Northern Hemisphere have contributed to rising temperatures in the last 30 years. The loss of snow and ice warmed the planet more than models predicted it would. Snow and ice help [...]

albedoeffect

Warming due to loss of snow and ice twice as strong as estimated

by on 19. Jan, 2011 in Uncategorized

full science report at http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo1062.html