So yeah, considering how necessary fabric is to human life, that isn't a terribly surprising figure.
Citation for the 100-ish hours: https://acoup.blog/2025/09/26/collections-life-work-death-an...
This is the actual quote on the page you cite:
"Today, the combined textile and apparel sectors contribute as much as 8–10% of global greenhouse gas emissions."
Notice the unusual way they spell "fashion"...
So carbon emissions are bad, but then we should price carbon and not micromanage clothing inventory.
A bit like feeding everyone vs. having an obesity crisis.