Clare Broadbent
Head, Sustainability
20 May 2026
Let’s be honest: life cycle inventory (LCI) data isn’t something most people stumble across by accident. It usually becomes relevant when you start asking slightly bigger questions – about climate change, whether to replace your car with a hybrid or electric vehicle, and whether you should think about the different packaging materials of the food and drinks you purchase at your local supermarket.
If you’re a young adult thinking about what to study next, curious about sustainability and how industries really work, or already involved in sustainability decisions, the release of our updated worldsteel LCI data is an important moment. Not because steel suddenly became relevant – it always has been – but because this data helps explain why steel matters in the environmental debate.
Steel is everywhere: in buildings, vehicles, infrastructure, packaging and renewable energy technologies. Understanding its environmental footprint is essential if we’re serious about decarbonisation and responsible material choices.
That’s exactly what this newly released data is designed to support.
This update also reflects the significant effort and commitment of worldsteel members worldwide, whose data inputs make this level of transparency possible.
What’s the big deal?
We’ve just refreshed our global LCI database, ensuring that no steel production data is older than five years. This data captures the full “cradle‑to‑gate” picture of steel production – from the moment iron ore is mined to the point where a steel product leaves the factory gate.
One way to think about it is as a nutritional label for steel. But instead of calories, sugar or salt, this label tells you about environmental impacts such as:
- Global warming potential – the carbon footprint of steel products, which is central to many climate discussions today
- Energy intensity – how much energy is needed to make different steel products
- Resource consumption – how much raw material is dug out of the ground and used to produce steel
- Water quality – impacts of steel production on local water systems
- Air quality – emissions such as dust, acidifying substances or ozone‑depleting gases
And this is just the starting point. The data is then used to help determine the impact of using steel in products (cars, bridges, buildings, packaging), what the benefits are to remanufacturing or reusing the steel, and then ultimately the benefits of recycling the steel once it’s come to the end of its useful life.
Why this data matters (and why you should care)
If you’re studying engineering, architecture, materials science, environmental science, sustainability, or working in any of those areas, this kind of data is essential.
It’s what allows you to carry out a proper Life Cycle Assessment (LCA).
Without LCI data, comparisons between materials are often based on assumptions, outdated figures, or oversimplifications. And while carbon dioxide and greenhouse gas emissions are crucial, they’re not the only environmental issues that matter. Clean air, access to fresh water, and responsible use of natural resources are just as important.
LCA helps you look at the full picture – not just one metric.
The updated data set covers products from hot‑rolled coil to plate, rebar, galvanised steels and tinplate, across all major market sectors.
It’s developed with data from more than 160 sites worldwide, representing over 356 million tonnes of steel production. It’s ISO‑compliant, rigorous and widely recognised.
Most importantly, it shows that steel is not only central to decarbonisation efforts but also to a genuinely circular economy. Steel can be redesigned, reused, and recycled – again and again.
How to explore the data
We know that not everyone wants to dive straight into detailed databases.
If you’re looking for an accessible entry point, our eco‑profiles summarise the key environmental data for each steel product, with global and regional figures where available. They’re a practical way to understand how different products compare.
If you need more detailed information, for academic work, design projects or professional use, you can request full LCI datasets via our data request process. The data is also available in major LCA software tools, with updates being rolled out.
One thing that’s still missing
Producing steel depends on supply chains that extend well beyond the steel plant itself. While some information comes directly from suppliers to the steel producers, high‑quality, openly usable upstream data is still difficult to access – particularly for industry average datasets where we ourselves don’t get data from the suppliers.
This isn’t a challenge for the steel industry alone. It’s a broader issue for anyone working on life cycle assessment, sustainability analysis or environmental transparency – and it’s a clear call for better, more reliable supply‑chain data.
And so…
If you’re comparing materials, studying sustainability, or thinking about how industry fits into a low‑carbon future, robust data matters. The worldsteel LCI database exists to replace assumptions with facts.
By making this data accessible, we’re supporting a deeper understanding of materials, and helping shape a future industry built on transparency, knowledge and informed choices.