Earth turns into a snowball without enough sunlight – BGR – techtoday19

• Earth experienced at least two ice-age-like periods in the distant past, and researchers arent sure what caused them.
• Theories include volcanic activity that blocked out the Sun or intense cloud formation that cast shadows across the planet.
• Understanding why these Snowball Earth periods happen is critical to being able to predict them in the future.

Earth has endured some incredible changes over its several billion years of life. The most dramatic shift that…

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