How Ice Ages Happen
Throughout Earth’s long history, there’s been dramatic changes to our climate. Ice ages have come and gone, but science has discovered a strong pattern that explains why ice ages happen known as the Milankovitch Cycles. The theory is based on two principles: first, the climate is affected by how much light the northern latitudes receive in the summer; second, the amount of sunlight varies based on the Earth’s orbit and rotation. Learn more from this edition of It’s Just Astronomical.
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