Yes, that’s 10,000 litres to grow enough cotton to make just one outfit. In some countries, it can be up to 20,000 litres. When so many people around the world don’t have enough safe water to drink, it’s unsustainable and it’s unfair. It’s harming our planet, too.The same goes for fashion’s carbon footprint. If you’re trying to live a little greener, you’ve probably thought about the way you travel, maybe what you eat. But many of us haven’t even considered the contents of our wardrobes.