The “Snowball Earth” theory suggests that the impact of asteroid strikes blocked sunlight, leading to a global cooling of the planet. Click to read more.
Snowball Earth theory disputed by new research, claiming panet was not totally frozen oversometime 650 million years ago, during the Cryogenian period, and had slushy patches.
Scientists disprove the Ice Age Hotspot Theory which claim a so-called equatorial belt of warm water was responsible for kickstarting life during the ice age on Earth.