Xain blog
Carbon footprint explained by the people who calculate it.
Guides and analysis for anyone who makes, buys or answers a footprint request. No filler, with sources in plain view.
Industries
Aluminium footprint: primary, recycled and the European mix
Why the origin of the metal decides the aluminium footprint: primary, recycled and the European mix, what changes in each case and what to ask your supplier.
Industries
Carbon footprint of a t-shirt: material, process and transport
What weighs in a t-shirt footprint: fibre, dyeing, making-up and transport. How to calculate it by style, colour and destination, and which data you need.
Industries
How to calculate the carbon footprint of an injection-moulded part
How the footprint of an injection-moulded plastic part is calculated: resin, energy per cycle, scrap and transport, and which mould and plant data you need.
Industries
Cotton vs polyester: how to compare footprint per kilo
Why there is no single answer to whether cotton or polyester has the lower footprint per kilo, and which variables decide the result for your own fabric.
Regulation
EmpCo: what you can and cannot claim about your product's footprint
EmpCo is a directive: its new rules wait for Spanish law. How to communicate your product footprint today with a calculated figure, without generic claims.
Product
How to choose carbon footprint software for your company
Criteria for choosing product carbon footprint and Scope 3 software: method, traceability, verification, data required and timing, with questions for vendors.
Scope 3
Scope 3 in three steps for procurement teams
How to start purchased-goods Scope 3 in three steps: prioritise, calculate with physical factors and improve with key suppliers’ primary data, without waiting.
Regulation
Spain’s Royal Decree 214/2025 explained for manufacturers
What Spain’s Royal Decree 214/2025 requires on organisation carbon footprint, who is obliged and what it means if you are a manufacturer supplying one.
Regulation
Textile digital product passport and Ecoscore: what to prepare
What we know today about the digital product passport for textiles and the French environmental label, and which data to organise per style from now.
Product
What your customer expects when they ask for your product's carbon footprint
What data a customer expects when asking for a product's carbon footprint: value, calculation boundary, standard and verification, and how to reply in time.
Methodology
Why spend-based calculation penalises companies that invest in decarbonising
A spend-based factor ties footprint to price, not to the product, so it penalises suppliers who invest in decarbonising. When a physical factor fits better.
Cases
Workwear tenders: what carbon footprint they ask for
What workwear tenders usually ask about carbon footprint, how to prepare ahead of time and why per-style data gives you an advantage when a deadline arrives.
Tell us what you want to measure
One product, a catalogue or your purchases. We reply with the next steps.
Contact Xain