Fast fashion and the ocean: the environmental impact explained

Why your wardrobe is an ocean issue

139 million metric tons. That’s how much fabric fiber the world produced in 2025. It was a new record, and more than double the amount produced in 2000. Most of it becomes clothing we wear only a handful of times. And a surprising amount of it ends up somewhere we rarely think about when we click “add to cart”: the ocean.

At Ocean. Now! we’ve spent a lot of time investigating where plastic pollution comes from. Bottles, bags and microbeads were the obvious sources. Fashion was not. Today we know better: after packaging, textiles are the second-largest use of plastic worldwide, and washing synthetic clothes is one of the main sources of microplastics released directly into the ocean.

So what exactly is fast fashion doing to the ocean? Let’s take a look.

When fashion waste reaches the ocean

Fast fashion is a business model built on speed and volume: new collections every few weeks, rock-bottom prices and clothes that are barely worn. Ultra-fast fashion pushes this to the extreme. According to Deutsche Umwelthilfe, Shein alone puts up to 11,000 new designs on the market every day.

The material behind this model is plastic. Polyester made up 59% of global fiber production in 2025, about 82.5 million metric tons. Only around 12% of polyester is made from recycled material, and that share isn’t growing, because virgin polyester output keeps rising: by about 5 million metric tons in 2025 alone. In other words, fast fashion runs on oil (and gas).

IMPACT 2: FOSSIL FASHION HEATS UP THE PLANET

Polyester, nylon and acrylic are made from crude oil and gas. That connects our wardrobes directly to the climate crisis–and the ocean, which absorbs much of the heat and carbon we add to the atmosphere, takes a big share of the burden.

Textile consumption in Europe alone caused 121 million metric tons of CO₂-equivalent emissions in 2021. The Hot or Cool Institute has calculated what staying within 1.5°C would mean for fashion. On average, people in high-income G20 countries would need to cut their fashion footprint by 60% by 2030, which comes to roughly five new garments per person per year.

Five. That shows how far today’s fashion system is from what the planet can cope with.

This also shows up in our own homes. In 2022, the average person in the EU bought 19 kg of clothing, shoes and household textiles, up from 17 kg in 2019. In Germany, people throw away 55% more clothing than they did ten years ago.

IMPACT 1: PLASTIC SNOW FROM OUR WASHING MACHINES

Every time we wear or wash synthetic clothes, they shed tiny plastic fibers. Many are too small for wastewater treatment plants to fully capture, so they flow through rivers and out to sea. The European Environment Agency estimates that 200,000 to 500,000 metric tons of microplastics from textiles enter the global marine environment each year. Worldwide, synthetic textiles are thought to cause 16–35% of all microplastics released into the ocean.

Here’s the twist: most fibers come loose during the first few washes. That is exactly the stage fast fashion multiplies, with millions of new, short-lived garments every week.

And these fibers travel far. Researchers sampled seawater right across the Arctic, from Norway to the North Pole. 92% of the microplastic particles they found were fibers, and 73% of those fibers were polyester. Plankton, fish, seabirds and whales cannot tell a fiber from food. Through the food web, these particles can make their way back onto our plates.

IMPACT 3: WHERE OUR CLOTHES GO TO DIE

What happens to all those clothes once we no longer want them? Many are exported, and Ghana is one of the world’s largest importers of secondhand clothing. Most bales go to Kantamanto Market in Accra, one of West Africa’s largest secondhand markets.

Greenpeace Africa reports that every week, up to half a million items of clothing waste from Kantamanto end up in open spaces and informal dumps. When the clothing waste was tested with infrared scanners, 89% of it contained synthetic fibers. Some of it is burned as fuel in public washhouses. Much of it is washed into drains, lagoons and the sea, and then back onto the beaches.

When we traveled to Accra, we saw this with our own eyes.

“In the past, fishing was a great source of income for the whole community, but now, due to waste in the sea, we are not able to catch fish like before.”

Jacob Nii Commey

Fisherman, Jamestown

This is waste colonialism: wealthy countries overproduce, and countries like Ghana pay the price. And because these clothes are made of plastic, they don’t rot. They break down into ever smaller pieces, right where the land meets the ocean.

AND NOW COMES THE BIG BUT… RECYCLING WON’T SAVE US

Many brands answer criticism with one word: recycled. It sounds like a solution, but unfortunately it isn’t one.

97% of recycled polyester is made from PET bottles, not from old clothes. Less than 1% of global fiber comes from recycled textiles
A bottle turned into a T-shirt leaves the bottle loop. The plastic’s journey into the environment is delayed, not prevented
A 2025 lab study commissioned by Changing Markets found that recycled polyester sheds around 55% more microfibers than virgin polyester in the wash, and those fibers are around 20% smaller

Let’s be clear: this doesn’t make virgin polyester the better choice. Neither is a solution. The problem is plastic in our clothes, and the sheer volume of it.

WHAT NEEDS TO CHANGE

Our own choices matter: buy less, swap, borrow, repair. But we can’t shop our way out of a system built on overproduction. Together with partners we’re calling for:

Less, not just “better”: binding EU targets that cut textile production and resource use in absolute terms

2. Make fast fashion pay: under the new EU rules on extended producer responsibility, short-lived, synthetic and ultra-fast fashion must pay much higher fees. Germany has to put this into national law by summer 2027

3. A way out of fossil fibers: a clear phase-down of plastic in clothing, moving toward materials that biodegrade completely under normal environmental conditions

4. An end to waste colonialism: no textile waste exported as “secondhand,” and a real say for importing countries such as Ghana

5. Reuse first: binding targets for waste prevention and reuse, plus support for swapping, lending, renting and repair

And there is some good news: politics is moving. Since October 16, 2025, an EU directive has required every member state to set up producer responsibility schemes for textiles, and it explicitly allows them to target fast and ultra-fast fashion practices. In June 2026, Germany, France and the Netherlands called for coordinated EU action against ultra-fast fashion.

At home, however, Germany is falling behind: its key points for a national textile law contain no binding targets for waste prevention or reuse, and the draft law is still pending. France has gone further and passed a law that bans advertising for ultra-fast fashion platforms. Now these announcements need to become binding, enforceable rules.

THE OCEAN IS CHOKING ON FAST FASHION

We believe that big brands can lead the way. That’s why we’re inviting adidas to move beyond polyester. Add your name to our petition (in German).

Want to know which fabrics shed the most microfibers and what you can do with your own laundry? That is the topic of our next article. Sign up for our newsletter so you don’t miss it, and follow the campaign along the way.

Together,

we can make

waves of change.

If you’d like to support our efforts to reduce plastic pollution in the ocean, you can support our current campaign by donating to our conservation efforts. Thank you.