The Environmental Cost of One T-Shirt, Honestly
A figure circulates widely: around 2,700 litres of water to produce one cotton t-shirt. It comes from water footprint research and is often quoted without context, so it is worth unpacking before using it.
What That Number Includes
Most of it is rainfall falling on cotton fields, counted as green water. That is water that would have fallen regardless, and treating it identically to water drawn from a depleting aquifer is misleading.
The figures that matter more are blue water, meaning irrigation from surface and groundwater, and grey water, meaning the volume needed to dilute the pollution created. Cotton grown in water-stressed regions with heavy irrigation is a genuine problem. The same crop rain-fed elsewhere is a considerably smaller one.
So the honest answer is that it depends heavily on where the cotton was grown, and most brands cannot tell you.
Where the Impact Actually Concentrates
Dyeing and finishing, which is water and chemical intensive and often the largest local pollution source
Irrigation in water-stressed cotton regions, which is uneven across India
Energy for spinning, knitting and finishing, tied to the local electricity mix
Transport, which is smaller than commonly assumed for sea freight and large for air freight
Disposal, where blended fabrics are difficult to recycle, discussed in what fast fashion actually costs
The Part Under Your Control
Here is the finding that tends to surprise people. For a garment you keep, a meaningful share of its lifetime footprint comes from the use phase: washing, drying and ironing.
Washing hot and tumble drying on high repeatedly, across years, adds up considerably. Cold washing and line drying reduce it substantially and cost nothing.
Which makes the most environmentally useful article we have published a laundry guide rather than a manifesto: how to wash graphic t-shirts.
What Reduces Impact Most
Keeping the garment longer, which divides the entire production footprint across more wears
Washing cold and line drying, which cuts the use-phase energy sharply
Washing less often, airing rather than laundering after light wear
Repairing rather than replacing over a small fault
Buying fewer items to begin with, which is the largest lever of all
Notice that four of the five cost nothing and none of them involve buying anything labelled sustainable.
Background at Wikipedia's article on the environmental impact of fashion.
What We Will and Will Not Claim
We do not have a lifecycle assessment for our garments and will not pretend to. We do not hold organic or environmental certification.
What we can say is narrow and verifiable: 100% cotton at 240 GSM, screen printed, built to survive several years of wear. Durability is the environmental argument we can actually stand behind, because it is the one we can control.
The reasoning is in why removing design costs more than adding it.
Frequently Asked Questions
How much water does it take to make a t-shirt?
A widely quoted figure is around 2,700 litres, but most of that is rainfall on cotton fields. Irrigation and pollution-dilution volumes matter more and vary enormously by growing region.
What is the biggest environmental impact of clothing?
Dyeing and finishing are typically the largest production impacts, while for garments kept long term, washing and drying contribute a meaningful share of lifetime footprint.
Does washing clothes affect their environmental footprint?
Yes, substantially. Hot washing and tumble drying over years add up. Cold washing and line drying reduce use-phase energy considerably at no cost.
What is the single best thing I can do?
Keep garments longer and buy fewer. Extending a garment's life divides its entire production footprint across more wears, which outweighs most material choices.
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