News Main Animals Archaeology Dinosaurs Earth History Human Animal Space Tech   iStockPhoto |   Done in by Gas? Scientists have debated whether the impact of a massive meteor was enough to wipe out the dinosaurs. But a new set of experiments shows the impact produced a huge amount of carbon monoxide, a compound commonly found in car exhaust. The sudden pulse of gas may have been enough to cause a large spike in global temperatures, and trigger a mass extinction. | Discovery News Video   « back to article

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