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Several sources make varying claims that 70% of the global economy is sensitive/dependant on the weather:

Is there evidence to support this claim?

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    What is that supposed to mean exactly? If you are talking about an area that gets weather such as a blizzard or hurricane that would impact everything and isn’t really a good measure.
    – Joe W
    Commented Jan 10, 2023 at 16:42
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    @JoeW: The definitions are unclear and contradictory between sources, but there seems to be a common meme between them and others. Maybe we can find the source and clarify.
    – Oddthinking ♦
    Commented Jan 10, 2023 at 22:14
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    What would the remaining 30% be? The only human activity not affected by the weather are autonomous systems already in space, which are very very few. I would take any claim it's less than 100% with a big grain of salt unless "weather sensitive" is more accurately defined. With bad enough weather, all human activity ceases.
    – gerrit
    Commented Jan 11, 2023 at 9:06
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    @Oddthinking The oldest reference in the second paper that claims 70% is Hanley, H., 1999. Hedging the Force of Nature. Risk Professional, pp. 21–25. Since they all claim 70%, I suspect that that paper is the source.
    – David Hammen
    Commented Jan 11, 2023 at 14:11
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    @DavidHammen I haven't found the paper by Hanley, but another reference to it says "It is estimated that nearly 30% of the US economy and 70% of the US companies are affected by weather" which isn't quite what the Q title says.
    – Weather Vane
    Commented Jan 11, 2023 at 15:18

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