Big fashion’s climate promises are unravelling under scrutiny, and Fashion Revolution’s latest What Fuels Fashion? 2025 Report makes that painfully clear.
The index ranks 200 billion-dollar brands , worth a combined $2.7 trillion , on how transparently they disclose their climate and energy data — and the average score is just 14%. What “What Fuels Fashion? 2025” actually measures What Fuels Fashion?
“ethics” or “sustainability”. It reviews 200 of the world’s largest fashion brands and retailers, all with annual turnover above $1 billion , and scores them on public disclosure across five climate and energy themes.
Brands receive points only for information that is already in the public domain, such as corporate websites, annual reports, or linked third-party disclosures.
A theoretical 100% score would mean a brand is publishing detailed supplier lists and full data on emissions, energy use, finance, just transition, and advocacy, but no brand reaches that level; the current high is 71%.
Clean heat: fashion’s biggest, most ignored climate lever The 2025 edition frames heat as fashion’s most solvable climate challenge, since fossil fuelled boilers in dyehouses, laundries and finishing mills are the single largest source of supply chain emissions…
