Glaciation
Glaciation is the geological process by which glaciers form, advance, and reshape the Earth's surface through erosion, deposition, and the movement of massive ice sheets. In today's context, it's a key indicator of climate change, helping scientists model past ice ages and predict future impacts on global environments. This dynamic force has carved out valleys, fjords, and lakes, dramatically altering landscapes over millennia.
Did you know?
Did you know that glaciation during the last Ice Age, which peaked about 20,000 years ago, locked up so much water in ice sheets that global sea levels dropped by over 120 meters, exposing land bridges like Beringia that enabled early human migrations from Asia to North America? This single event not only reshaped coastlines but also influenced the evolution of countless species by creating isolated habitats.
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