• Rhaedas@fedia.io
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    18 hours ago

    The graphic isn’t all that accurate. The text says a colder period is because of a warmer planet but then the cold area from a meandering jet stream looks larger. The missing part is the warmer air that leaks into the polar areas, causing a feedback loop by further deteriorating the balance of cold and warm that drives the jet stream.

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        5 hours ago

        It’s a bit prettier. What’s missing (and I know this is meme territory so it’s not a big deal) is how the jet stream is not just weak and wandering, but literally breaking in places and that’s where warm air into the poles happens. And it’s not hard to understand warmer where there’s normally ice means less ice.