# Fast Fashion and the Environment: The Full Cost of Cheap Clothes

> The fashion industry is one of the world's most polluting sectors. Here is what the environmental evidence shows and what can actually be done.

*Section: Environment — By Elena Marsh (Environment & Climate Correspondent) — Published December 21, 2025 — 1 min read*

Canonical URL: https://dailyjunction.org/environment/fast-fashion-environmental-impact
Tags: fast fashion, environment, sustainability, clothing, textiles

## Key takeaways

- The fashion industry accounts for around 8-10% of global carbon emissions and 20% of global wastewater
- Synthetic fibres (polyester, nylon, acrylic) shed microplastics with every wash
- The average garment is now worn 7-10 times before disposal — down from 200+ times a generation ago
- Buying less and buying secondhand are more effective than buying "sustainable" fast fashion

## The scale of the problem

The fashion industry accounts for an estimated 8-10% of global carbon emissions — more than aviation and shipping combined. It is responsible for approximately 20% of global industrial wastewater (from dyeing and treatment processes). The 2.7 trillion litres of water consumed to produce global cotton annually exceeds the water consumption of many countries.

## Microplastics

Around 60% of clothing is now made from synthetic fibres — polyester, nylon, acrylic — derived from petroleum. Every time a synthetic garment is washed, it sheds microplastic fibres that pass through wastewater treatment and enter waterways and ultimately the ocean. Studies estimate that laundering releases between 700,000 and 12 million microplastic fibres per wash. Microplastics have now been found in human blood, breast milk, lungs and placenta.

## The consumption problem

The scale of the environmental impact is driven not just by production methods but by consumption volume. The average garment is now worn approximately 7-10 times before disposal, compared with estimates of 200+ times for garments purchased a generation ago. Global clothing production doubled between 2000 and 2015. The fundamental issue is that the environmental cost of clothing production is externalised — not included in the price — which incentivises overproduction and overconsumption.

## What individuals can do

The evidence consistently shows that buying less is more effective than buying "sustainable" fast fashion (which is often a marketing claim with limited substance). Buying secondhand clothing prevents the environmental cost of new production entirely. Washing clothes at lower temperatures and in fuller loads reduces both microplastic shedding and energy use. Choosing natural fibres (cotton, wool, linen) reduces microplastic shedding but introduces other environmental concerns. Washing garments less frequently extends their life and reduces impact.

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## Sources

- [Carbon Brief](https://www.carbonbrief.org)
- [IPCC](https://www.ipcc.ch)

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Daily Junction — https://dailyjunction.org/environment/fast-fashion-environmental-impact