How Ganni uses supply chain data to track and cut carbon footprint

Danish fashion brand Ganni relies on digital tools, supplier engagement and granular data collection to measure and reduce carbon emissions across its multi-tier supply chain. The company uses the Higg Index, tier-mapping platforms and direct collaboration with manufacturing partners to track scope 3 emissions,which account for the vast majority of its carbon footprint,and reports progress in annual sustainability disclosures.

What data systems does Ganni use to measure supply chain emissions?

Ganni employs a combination of industry-standard tools and supplier engagement to collect emissions data. The brand uses the Higg Facility Environmental Module (FEM) to gather data from its tier 1 suppliers, which include cut-and-sew facilities and finished goods manufacturers. The Higg FEM is a standardised assessment tool that helps factories measure energy use, water consumption and greenhouse gas emissions.

Beyond tier 1, Ganni works to map emissions from raw material production and textile processing. The company has invested in supplier relationship management and traceability systems to extend visibility deeper into the supply chain. This includes collecting data on fabric mills, dyehouses and fibre producers. Ganni also uses lifecycle assessment (LCA) methodologies to estimate the embodied carbon in materials such as cotton, polyester and leather.

The brand consolidates this data to calculate total scope 3 emissions, which encompass purchased goods and services, upstream transportation and distribution, and end-of-life treatment. Scope 3 typically represents more than 90 per cent of a fashion company's total carbon footprint, making accurate measurement critical for meaningful reduction strategies.

What carbon reductions has Ganni reported?

Ganni achieved a 19 per cent absolute reduction in scope 3 emissions between 2021 and 2023, according to the company's sustainability reporting. This reduction was delivered despite business growth over the same period, reflecting efforts to decouple emissions from revenue expansion. The company has set science-based targets aligned with limiting global warming to 1.5 degrees Celsius and reports progress annually.

The brand has also reported reductions in emissions intensity,carbon per unit of product or per unit of revenue,though absolute reductions remain the priority for meeting climate commitments. Ganni's reductions have been driven by a combination of material substitution, supplier energy efficiency improvements and renewable energy procurement.

How does Ganni work with suppliers to cut emissions?

Ganni collaborates directly with manufacturing partners to identify and implement emissions reduction projects. Key initiatives include transitioning suppliers to renewable energy, improving energy efficiency in production facilities and selecting lower-carbon materials. The company prioritises long-term supplier relationships, which enable joint investment in decarbonisation infrastructure.

Renewable energy adoption is a central pillar of Ganni's supplier engagement. The brand works with factories to procure clean electricity through on-site solar installations, power purchase agreements or grid-supplied renewables. In markets where renewable energy access is limited, Ganni supports suppliers in exploring alternatives such as energy attribute certificates, though the company emphasises the importance of physical renewable energy deployment.

Material choices also play a significant role. Ganni has shifted towards preferred fibres with lower lifecycle emissions, including organic cotton, recycled polyester and innovative materials such as bio-based synthetics. The company conducts LCAs to compare the carbon impact of different fibres and construction methods, using this data to inform design and sourcing decisions.

• Supplier renewable energy projects and power purchase agreements
• Energy efficiency upgrades in manufacturing facilities
• Material substitution towards lower-carbon fibres and fabrics
• Lifecycle assessments to guide design and sourcing choices
• Long-term supplier partnerships to enable joint decarbonisation investment

What challenges does Ganni face in supply chain carbon measurement?

Accurate emissions measurement across multi-tier fashion supply chains remains complex. Data quality and availability vary significantly between suppliers, particularly at lower tiers where smaller facilities may lack the resources or technical capacity to conduct detailed emissions accounting. Ganni addresses this through supplier training, data verification and the use of industry-average estimates where primary data is unavailable.

Another challenge is the lack of standardisation in carbon accounting methodologies. Different tools and frameworks can produce varying results for the same product or process, complicating comparisons and benchmarking. Ganni participates in industry initiatives aimed at harmonising measurement approaches and improving data interoperability.

Scope 3 emissions from purchased goods are also influenced by factors outside the brand's direct control, such as national energy grids, agricultural practices and transportation infrastructure. This requires Ganni to balance direct interventions,such as supplier renewable energy projects,with advocacy for systemic change, including policy support for clean energy and sustainable agriculture.

How does Ganni report carbon data to stakeholders?

Ganni publishes detailed emissions data in annual responsibility reports, which include breakdowns of scope 1, 2 and 3 emissions by category. The company discloses both absolute emissions figures and intensity metrics, allowing stakeholders to assess progress against reduction targets and business growth. Ganni's reporting follows frameworks such as the Greenhouse Gas Protocol and is aligned with science-based target criteria.

The brand also participates in voluntary disclosure platforms such as CDP (formerly the Carbon Disclosure Project), which provides additional transparency for investors and corporate customers. Ganni's carbon data is integrated into broader sustainability reporting covering water use, waste, chemicals and social compliance, reflecting the interconnected nature of supply chain impacts.

Looking ahead, Ganni has committed to ongoing improvements in data granularity and coverage. The company aims to increase the proportion of primary emissions data collected directly from suppliers, reducing reliance on estimates and industry averages. This will support more precise tracking of reduction initiatives and enable targeted interventions at the product and supplier level.