Climate explained: what is an ice age and how often do they happen?
Why Our Glaciers Are Melting - The Simple Truth — JONAA, Journal of the North Atlantic & Arctic
Glaciers. Geologists define a glacier as any large mass of ice that moves slowly over land. There are two types of glaciers: Continental glaciers Valley. - ppt download
Calving of freshwater glaciers - AntarcticGlaciers.org