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The IWTO Green Book

1st Edition · Guide to wool sustainability issues & supply chain integrity standards

Wool has a story that mainstream environmental accounting has consistently failed to tell. The Green Book brings together peer-reviewed science, independently verified data, and practical standards to give brands, retailers, and industry stakeholders the tools they need.

Current life cycle assessment tools rank wool as more environmentally damaging than synthetic fibres derived from fossil fuels. The reason is methodological — and the IWTO Green Book contains a comprehensive response to this paradox.

WHAT’S INSIDE

A sustainable fibre by nature

Wool’s biogenic, biodegradable, recyclable, and energy-efficient properties — documented and peer-reviewed.

Time to lift eco-accounting standards

Why conventional LCA tools systematically overstate wool’s carbon footprint, and the science that corrects them.

Wool’s role in the planetary ecosystem

From photosynthesis to soil systems, how wool sustains ecosystems and stores carbon.

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Wool’s role in grazing systems

How responsible grazing practices improve soil health, biodiversity, and carbon balance.