<human>:  Why did the Ice Age end?
<bot>: The Ice Age ended when the Earth’s climate warmed due to the greenhouse effect. This warming allowed the polar ice caps to melt, causing sea levels to rise and flooding the land around the poles. The melting of the ice caps also caused the ocean to warm, causing the circulation of the ocean to slow down, and causing the water levels to fall. This in turn caused the climate to cool again.