Ice age

From FIS Freestyle wiki

Ice age or, more precisely, "glacial age" is a generic geological period of long-term reduction in the temperature of the Earth's surface and atmosphere, resulting in an expansion of continental ice sheets, polar ice sheets and alpine glaciers.

An ice age is a natural system. Within a long-term ice age, individual pulses of extra cold climate are termed "glacial periods" (or alternatively "glacials" or "glaciations"), and intermittent warm periods are called "interglacials".

[edit] Also see

• Alpine permafrost
• Rivers
• Isotherm
• Glaciation
• Mountain
• Ice age
• Physical Features of Mountains
• Defining Mountain Regions
• Frozen Ground
• Cryosphere
• What Affects Frozen Ground
• What is the Cryosphere
• Evaporation
• Freezing Point / Freeze
• Snow line
• Frost line

[edit] Reference

1. Wikipedia Ice age [1]

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