This image collection from the National Snow and Ice Data Center features 14 pairs of Alaskan glacier photographs. Each photographic pair consists of a late-19th or early-20th century photograph and a 21st century photograph taken from the same location. The comparative photographs clearly show substantial changes in glacier position and size and document significant landscape evolution and vegetative succession. The site also provides links to pairs of photographs of glaciers in Switzerland, a repeat photography project at Glacier National Park by the USGS, a glacier database which features satellite images and maps, and further information on glaciers.
Subject: Environmental Science:Global Change and Climate:Climate Change:Paleoclimate records, Geoscience:Atmospheric Science:Climatology , Climate Change, Climate Change:Paleoclimate records Resource Type: Audio/Visual:Images/Illustrations, Scientific Resources:Collection Theme: Teach the Earth:Course Topics:Environmental Science, Teach the Earth:Incorporating Societal Issues:Climate Change, Teach the Earth:Course Topics:Atmospheric ScienceKeywords: climate change, global warming
