CEOs of the 20 biggest fashion brands in the world were contacted yesterday by NGOs Changing Markets and Stand Earth, with demands that they halve the amount of fossil fuel they use in materials by 2030.

Nike, Primark, Patagonia and ASOS are among those to be called out by the Changing Markets Foundation.

The foundation is demanding complete transparency on their use of fossil fuels in the next 12 months – with oil and gas most commonly being used by brands to create synthetic materials such as polyester.

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