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Oxygen First Breath — a natural disaster struck us and put humanity on the brink of extinction. Only a few people survived through the Great Igneous Provinces. These are volcanoes that do not explode, but at the same time huge cracks open in the earth’s crust. From them, erupting lava spreads across the landscape, releasing tons of poisonous gases. The most dangerous thing in an eruptive province is that which can evaporate for centuries. Under the influence of the wind, these gases spread around the world and changed the composition of the atmosphere.