Approximately 700 million years ago, Earth experienced a period called Snowball Earth, when massive ice sheets may have covered nearly the entire planet, causing oceans to freeze and temperatures to crash due to ice reflecting sunlight back into space; this frozen state persisted for millions of years until volcanic activity gradually filled the atmosphere with carbon dioxide, creating a greenhouse effect that eventually melted the ice and allowed complex life, including humans, to potentially evolve.
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Earth Was Locked In Ice | The Terrifying Snowball Earth Story ๐ง๐ #shortsAdded:
Earth almost became a permanent frozen planet.
Around 700 million years ago, an event called Snowball Earth may have covered nearly the entire Earth in ice.
Oceans froze. Ice reflected sunlight back into space, making the planet colder and colder.
For millions of years, Earth stayed trapped in this frozen nightmare.
Then volcanoes slowly filled the atmosphere with carbon dioxide, heating the planet enough to melt the ice.
And if Earth had stayed frozen a little longer, complex life, including humans, might never have existed. Subscribe for more amazing content.
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