1. What Is LCA and Why Is It Important?
Life Cycle Assessment (LCA) is a method for evaluating the environmental impacts of a product, service, or system across its entire life cycle, from raw material extraction to manufacturing, use, and end-of-life.
Think of it as a full biography of your product’s environmental story. Not just the glossy highlights you’d put on the website, but the whole thing — including the awkward chapters.
LCA identifies environmental impacts and where they are in the product lifecycle, enabling evidence-based decisions rather than assumptions and helping companies focus time and investment where they will have the greatest impact.
The important note here is that LCA is a methodology for assessment, not the solution for environmental footprint.
Why does it matter?
Because without it, you’re making environmental decisions based on assumptions, gut feelings, or whichever issue happens to be in the news. LCA gives you evidence. It tells you where your impacts actually sit — and the answer is frequently not where you’d expect.
Companies often assume manufacturing is the main culprit, only to discover that raw material extraction or the consumer use phase dwarfs everything else.
In a regulatory landscape that’s tightening fast — CSRD, the EU Green Claims Directive, increasing scrutiny on environmental marketing — having robust, evidence-based environmental data isn’t just good practice. It’s becoming a basic cost of doing business.
2. Does Every Decision Require a Full, Peer-Reviewed LCA?
A full ISO 14044-compliant, critically reviewed LCA is the gold standard — and sometimes you absolutely need one. Public comparative claims? Do not skip this step. Regulatory compliance? Same.
But here's what we see often: a company hears "an LCA," pictures a 9-month project with a price tag that makes finance weep, and decides to do… nothing to save the budget.
Nothing is not progress. Especially when there is so much that can be done.
A screening LCA can flag your biggest hotspots in weeks, not months. A streamlined assessment can help you see the biggest drivers of environmental impact without convening a panel of critical reviewers.
You do not need 99% primary data to find out that those 2 materials account for the largest proportion of carbon and that 1 material is very highly water-intensive.
Even sitting down and mapping your product's lifecycle on a whiteboard can surface things nobody had thought about (did everyone know how many processes the product had undergone before it had reached them?)
Now you can agree with finance to spend that leftover budget on actually engaging your suppliers to increase PCR content, swap out materials or even redesigning the product.
The gold standard exists for a reason. But waiting for gold when bronze would already get you moving? That's just missed opportunities.
Contact us if you’d like guidance on the right approach for your business.
3. Is LCA the same as Product Carbon Footprint?
A lifecycle assessment can include a carbon footprint - but it doesn't have to be limited to one.
LCA is simply a methodology for evaluating lifecycle impacts. Which impacts you assess depends entirely on the purpose of the exercise. Carbon is just one of many impact categories. Water use, eutrophication, land use, human toxicity, ecotoxicity - these all sit within the LCA toolkit.
The risk of treating LCA and carbon footprint as interchangeable? We start making decisions that look great on paper for emissions but miss the bigger picture entirely.
For example:
- A company switches from conventional cotton to a synthetic alternative because it has a lower carbon footprint per unit. But that synthetic sheds microplastics throughout its use phase and end of life, contributing to aquatic ecotoxicity that a carbon-only assessment would never flag.
- Biofuels can look favourable from a greenhouse gas perspective in comparison to diesel, but if we do not consider the feedstock and widen the lens to include land use change, eutrophication from fertiliser runoff, and water consumption, the environmental trade-offs become far more complex.
If we only measure what's easiest to communicate, we risk optimising for one metric at the expense of everything else. That's carbon tunnel vision.
LCA gives us the framework to see the full picture. Let's actually use it
4. How Can LCA Support Circular Economy Strategies?
LCA provides the evidence base to evaluate these strategies rather than simply assuming they’re beneficial.
Refill and reuse models are increasingly popular, but they introduce new lifecycle stages - reverse logistics, cleaning, inspection, redistribution - that all carry their own environmental footprint. A reusable container only delivers net environmental benefits after a certain number of use cycles, and that breakeven point depends on the material, the weight, the transport distances, and the washing process. LCA can identify how many times that bottle needs to be reused for the environmental value to be supported. This can help you inform your operational and marketing plans.
Product life extension through repair, refurbishment, or remanufacturing can be highly effective, particularly for products with high manufacturing impacts. But extending the life of an energy-inefficient appliance might increase use-phase impacts to the point where replacement with a more efficient model would have been the better environmental choice. Again, LCA provides the framework to navigate this trade-off.
Material substitution in the name of circularity - swapping to bio-based, recycled, or more easily recyclable materials - needs the same level of critical assessment. A bio-based plastic might be technically compostable, but if it requires more land, water, and fertiliser to produce, and if the composting infrastructure doesn’t actually exist at scale in your market, the circular narrative starts to look less convincing under lifecycle scrutiny. This of course depend on the actually bio-based plastic and collection/ recycling systems available where the material is disposed of
The point isn’t that circular strategies are bad. Many of them deliver genuine environmental benefits. The point is that LCA helps you identify which ones deliver benefits in your specific situation, model the most optimal systems - and design circularity interventions around evidence rather than aspiration.
5. How Does LCA Create Business Value Beyond Compliance?
Beyond compliance, LCA is a strategic tool:
Identifying cost savings. Environmental hotspots and cost hotspots frequently overlap. The lifecycle stage consuming the most energy, the most water, or the most raw materials is often also the most expensive. Companies that use LCA findings to guide operational improvements regularly discover that reducing environmental impact and reducing cost aren’t opposing forces - they’re the same project viewed from different angles.
De-risking the supply chain. An LCA forces you to look closely at your entire value chain, including the parts you don’t directly control. This process often surfaces dependencies, vulnerabilities, and concentration risks that wouldn’t have been identified through standard procurement processes. Understanding where your critical materials come from, how they’re processed, and what environmental pressures sit at each stage is supply chain intelligence - with environmental data as a bonus. LCA is a framework to start asking questions - the richness of those questions and answers can be the lever to drive value and resilience for the business.
Strengthening commercial relationships. B2B customers are increasingly asking for lifecycle data, and they start getting it from many more suppliers. If you can provide credible environmental information about your products, you become easier to work with for customers who have their own reporting obligations. Being the supplier who already has this data is a genuine competitive advantage.
It is also an opportunity to have a better negotiation position - customers may be asking for this information now on a voluntary basis, and start integrating it in their procurement processes shortly after - with commercial implications.
Informing product development. LCA data, when integrated early in the design process (sometimes called “eco-design”), can guide material selection, manufacturing processes, and end-of-life strategies before decisions are locked in. For example, an LCA might reveal that packaging, rather than the product itself, drives most of the carbon footprint, prompting a redesign using lighter materials or alternative formats. It’s far cheaper to design out an environmental hotspot than to engineer around one after production is underway.
Scenario modelling: LCA supports “what-if” analysis by testing alternative scenarios before changes are implemented. Examples include assessing the impact of switching to recycled or bio-based materials, changing energy sources from fossil-based to renewable electricity, or optimizing logistics routes and transport modes to reduce emissions.
Supporting credible communication. In a world of increasing greenwashing scrutiny, having evidence-based environmental claims backed by robust methodology is worth its weight in gold. An LCA gives your marketing and communications teams something solid to stand on — which, given the direction of regulation, is going to matter more and more.
6. What Are the Limitations of LCA?
Like any methodology, there will be constraints and limitations that are important to be aware of.
Data availability and quality. An LCA is only as reliable as the data that goes into it. Primary data specific to your operations and supply chain is always preferable, but it’s not always available (and very frequently is not primary at all), particularly further up the supply chain. Proxy data from databases like Ecoinvent fills the gaps, but these are averages and proxies, sometimes quite dated, not your specific reality. The further you get from primary data, the more uncertainty you introduce. This is particularly true for novel materials and recent material innovations that may not have had as much public research completed.
Complexity and cost. An LCA, whether full ISO aligned or streamlined version, still requires time, data collection effort, expertise, and investment. For smaller organisations this can be a genuine barrier.
Static snapshots. A traditional LCA captures a snapshot in time based on the data available when the study was conducted. Supply chains change, energy grids decarbonise, manufacturing processes evolve. Results from an LCA conducted three years ago may not reflect today’s reality. Many studies in emissions databases are from 15-20 years ago. Periodic updates or sensitivity analysis on key variables can help, but LCA is not inherently a dynamic tool. This is particularly relevant if a company knows that they may be changing their processes, scaling up or shifting supplies or materials - all these changes can be modelled as additional scenarios based on assumptions, but they still remain versions of might be.
Difficulty capturing certain impacts. Some environmental and social issues are genuinely hard to quantify within an LCA framework. Biodiversity impacts, microplastic pollution, social and labour conditions in the supply chain — these are areas where the methodology is still evolving. LCA is powerful, but it doesn’t capture everything that matters. It should be one tool in a broader sustainability assessment toolkit, not the only one.
Trade-offs between impact categories. LCA results frequently show improvements in some impact categories alongside trade-offs in others. Is a reduction in carbon emissions “worth” an increase in water use? These are ultimately value judgements, not purely scientific ones. LCA provides the data to make those trade-offs visible, but it doesn’t make the decision for you. This is where additional context, prioritisation and strategic approach are required.
Sensitivity to methodological choices. The functional unit you choose, the system boundaries you draw, the allocation methods you apply, the impact assessment method you use - all of these influence the results. Two perfectly valid LCAs of the same product can reach different conclusions if different methodological choices were made.
This isn’t a flaw, exactly, but it means that understanding and scrutinising the methodology behind the results is just as important as the results themselves. This is why it is not a good idea to compare your product LCA to another product LCA unless you know exactly how it was completed, the data it used and assumptions that were made. It is however a powerful tool to identify priorities for your portfolio and see improvements in your own products.
7. Who Can Benefit From Using LCA?
The short answer: more organisations than currently realise it. Selected examples include:
Manufacturers and product companies that want to understand where to focus their environmental efforts and resources for the biggest impact and how to communicate environmental credentials credibly. This applies whether you’re producing fast-moving consumer goods, building materials, electronics, textiles, food and drink, or anything else that has a supply chain and an end of life
Brands that sell products that they may not be manufacturing, but have a significant say in design of. Even if you do not control the manufacturing processes - design and sourcing choices are critical levers. An accurate and engaging impact story is very important for these brands, and therefore transparency and better understanding of where the hotspots and risks are in their products is critical for this story to be supported.
Suppliers to brands who want to demonstrate that their products - be it packaging, ingredients, materials, or finished goods, are “more circular,” “greener,” or offer a lower environmental impact than conventional alternatives. It is critical to be able to articulate how they are better - not only because this is an easier conversation with buyers, but also because this helps your buyer build a stronger internal business case and easier to identify how your product or solution contributes to their environmental targets.
The Bottom Line
Lifecycle assessment isn’t magic, and it isn’t perfect. It’s a structured, evidence-based methodology that helps you understand where environmental impacts actually occur so you can make better decisions about where to act.
It doesn’t have to be overwhelming, it doesn’t always have to cost a fortune, and it certainly doesn’t have to gather dust on a shelf. The most valuable LCAs are the ones that lead to action.
Need help figuring out where to start? Whether it’s a full LCA, a screening assessment, or just a conversation about what lifecycle thinking could look like for your business — get in touch.
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