http://nsidc.org/cryosphere/glaciers/questions/land.html nsidc.org http://nsidc.org/cryosphere/glaciers/questions/land.html http://nsidc.org/cryosphere/glaciers/questions/land.html http://nsidc.org/cryosphere/glaciers/questions/land.html glacial scouring and retreat glacial erosion How do glaciers affect land? http://nsidc.org/cryosphere/glaciers/questions/land.html glaciers change http://nsidc.org/cryosphere/glaciers/questions/land.html nsidc.org http://nsidc.org/cryosphere/glaciers/questions/land.html http://nsidc.org/cryosphere/glaciers/questions/land.html http://nsidc.org/cryosphere/glaciers/questions/land.html glacial scouring and retreat http://nsidc.org/cryosphere/glaciers/questions/land.html http://nsidc.org/cryosphere/glaciers/questions/land.html