Introduction to Glaciation . New York and the Ice Ages. Glaciation.
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Various types of paleo-climatic evidence suggest that the climate of the Earth has varied over time. The data suggests that during most of the Earth's history, global temperatures were probably 8 to 15° Celsius warmer than they are today. However, there were periods of times when the Earth's average global temperature became cold.
Ocurren incluso con las actuales temperaturas globales mas cálidas. En las montanas altas, donde la temperatura no derrite la nieve durante el verano, los glaciares de valle siguen creciendo y arrastrándose.