The surprising chemical footprint of your clothes

Natural fabrics aren't necessarily more sustainable than synthetics—a finding that challenges the common wisdom many people follow when shopping. Per The Conversation, researchers at the University of Manchester examined the full journey of textiles from raw material to finished garment, and the picture gets complicated fast. Cotton requires vast water and heavy pesticide use. But the real impact comes later: before reaching stores, fabrics undergo extensive chemical processing—bleaching, dyeing, waterproofing, fire-treating, and crease-resistant finishes. Some chemicals, like PFAS or forever chemicals, persist indefinitely in the environment. Both natural and synthetic fibers now show up as pollution in rivers and oceans. The conclusion: buy less, wear it longer, repair when possible, and support brands transparent about their chemicals. The most sustainable textile isn't determined by its fiber type—it's determined by how it's made, used, and disposed of.

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