• @silence7@slrpnk.netOP
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    71 year ago

    Probably used a color palette calibrated to use the blue end of the spectrum for the cooler temperatures since the late 1800s. Those low temperatures have stopped happening.

    • @wunami@lemmy.world
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      91 year ago

      There’s no probably. The legend clearly labels the colors to correlate to decade. It’s not related to temperature directly.