The following internet sites provide information about glaciers and glaciation along with information about the global climate changes that are associated with periods of glaciation. From these web sites you can learn how glaciers form and grow, where glaciers are presently located on the Earth, and what North America and Europe were like during the last ice age.

http://www-nsidc.colorado.edu/NSIDC/gallery.html
The National Snow and Ice Data Center at the University of Colorado at Boulder provides scientific information, data sets, and images of glaciers around the world.

http://www.ngdc.noaa.gov/paleo/paleo.html
The National Oceanic and Atmospheric Administration Paleoclimatology Program offers information on global climate change through time.

http://geochange.er.usgs.gov/
Visit the USGS Global Change Research Program site to learn all about climate change from the recent geologic past to the present. This site contains a wealth of data and maps illustrating the evidence for climate change.