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Key Facts In This Video
A heat dome is a stagnant mass of hot, humid air up to a million square miles in size. Its low pressure bears down on air beneath it, creating a sealed-off dome of heat. 00:34
Eventually, the dome breaks up, and the jet stream pushes it out to the ocean. 01:08
There's no single incident that can prove or disprove global warming. It's an average effect. 02:32
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