Protecting the climate together

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  • DB is making an important contribution to the Paris Agreement as an international treaty on climate change and to achieve the German and European climate protection targets: DB has committed to reducing its greenhouse gas emissions (GHG) across the entire value chain to net zero by 2040. This target has been confirmed by the renowned and independent Science Based Target initiative (SBTi). In its decarbonization strategy, DB adheres to the SBTi's science-based net-zero standard, thereby following a 1.5-degree path.

    DB's net-zero target, including its interim targets, covers not only direct greenhouse gas emissions (Scope 1) and emissions from purchased energy (Scope 2), but also emissions from upstream and downstream activities along the entire value chain (Scope 3), which account for the largest share of its GHG emissions. Net zero means that all GHG emissions are reduced wherever technically feasible and economically viable. Only the residual emissions that are difficult or otherwise unavoidable (maximum ten percent) are neutralized - that is, removed from the atmosphere and permanently sequestered through technical or nature-based solutions.

    The focus is particularly on upstream emissions arising from the production of purchased goods, services and capital goods (Scope 3.1 and 3.2). For this emission, DB has defined a Supplier Engagement Target (SET): by 2029, 66 percent of suppliers (by emissions volume of the DB Group’s purchased goods, services, and capital goods (Scope 3.1/3.2)) will have adopted science-based emissions targets. 

    In summer 2025, DB launched the first status quo survey on the Supplier Engagement Target. The survey is conducted annually and includes the following steps:

    1. Identification of key suppliersAs part of the Supplier Engagement Target, DB identifies the suppliers with the highest GHG emissions impact in DB’s value chain. These suppliers are contacted directly to engage them in joint climate protection action.
    2. Information events for suppliersTrough interactive formats - including information sessions and deep-dive meetings on climate targets setting - DB explains the background, objectives and requirements of the SET and supports suppliers in developing their own science-based climate targets.
    3. Collection of suppliers' science-based targetsDB suppliers with the highest GHG emissions impact are invited to complete an assessment of their GHG emissions and climate protection targets via the digital sustainability platform IntegrityNext. This survey is conducted annually to a consistently advance the shared goal with our suppliers: to drive climate protection sustainability along the entire value chain.

    What does this mean for you as a DB supplier? 

    If you are one of the DB suppliers with the highest GHG emissions impact, we will invite you to the optional information sessions and to complete the IntegrityNext assessments (Corporate Carbon Footprint assessments (CCF)). We kindly ask you to complete the assessments promptly.

    If you do not yet have a science-based target, but like to set one soon, the following steps should be implemented:

    1. Management: Company leadership must recognize climate protection as a strategic priority and make a clear commitment to the 1.5-degree-target.
    2. GHG accounting: All greenhouse gas (GHG) emissions along the value chain (Scope 1, 2 and 3) should be quantified in accordance with recognized standards such as the Greenhouse Gas Protocol. For small and medium-sized enterprises (SMEs), it is sufficient to record Scope 1 and 2 emissions.
    3. Climate targets: Climate targets should be science-based and aligned with the 1.5-degree-target, ideally validated by the Science Based Targets initiative (SBTi).
    4. Measures: Concrete measures such as the transitioning to renewable energy, increasing energy efficiency and collaborating with suppliers must be implemented.
    5. Monitoring: Progress and results should be reported regularly and transparently, ideally in accordance with international standards such as CDP or GRI.

    How do you benefit as a supplier? 

    Implementing the Supplier Engagement Target significantly reduces DB's Scope 3.1/3.2 emissions. At the same time, it makes the entire value chain more climate-friendly and resource-efficient while strengthening supplier competitiveness. The SET offers DB's suppliers a wide range of benefits:

    • Sustainability as a competitive advantage: Sustainable business practices strengthen long-term competitiveness and market position, forster stable partnerships and open new business opportunities. Establishing science-based climate strategies early stage improves access to financing, insurance and investors.
    • Reduce costs, increase efficiency: Saving resources and improving energy efficiently lowers operating costs and optimizes processes. You also benefit from reduced dependence on fossil fuels and improves resilience to energy prices fluctuations.
    • Proactively meet regulatory requirements: The SET helps suppliers prepare efficiently for future supply chain regulations. It supports early alignment with upcoming legal requirements and market standards.
    • Demonstrate responsibility, strengthen trust: As a sustainable company with a science-based target, you demonstrate responsibility, innovation and future orientation to customers and business partners. 

    In summary, beyond long-term CO₂ reduction, the SET delivers significant advantages for suppliers: integrating science-based targets into their business operations creates transparency on emissions, enhances efficiency and reputation, and ensure long-term economic stability and market attractiveness.

    FAQ - This is also important to know:

    Science-based targets

    What is a science-based target (SBT)?

    A science-based target is a corporate climate reduction target for all the greenhouse gas emissions for which the company is responsible. The requirements for the climate target are based on scientific evidence and aligned with the Paris Agreement, which aims to limit global warming to a maximum of 1.5 degrees. The Science Based Targets initiative (SBTi) has developed a framework of standards and guidance to support corporate target setting (for more specific information, visit: https://sciencebasedtargets.org/standards-and-guidance).

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    What are the minimum requirements for a science-based target?

    A science-based target must include climate goals for the next five years. For Scope 1 and 2 emissions, an annual linear reduction of at least 4.2 percent compared to the base year must be achieved, and for Scope 3 emissions at least 2.5 percent. Sector-specific differences defined by the SBTi must be considered. Scope 3 targets are not mandatory for small and medium-sized enterprises (SMEs) or for companies where Scope 3 emissions make up less than 40 percent of their total  emissions (Scope 1, 2, and 3 emissions). 

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    Is a SBTi validation required for a science-based target?

    The SBTi is a non-governmental organization (NGO) that provides a science-based methodology for defining climate targets. Its aim is to promote science-based target setting across industries. The sector and the size of a company are considered, to determine the contribution of a company to the Paris Agreement. For an SBTi-compliant and aligned target, it is sufficient to meet the SBTi criteria. External validation is not required, though it is generally recommended.

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    Which GHG emissions are covered by science-based targets?

    A science-based target encompasses all GHG emissions the company is responsible for – including emissions from production, marketing, delivery and related activities. 

    • Scope 1: Direct emissions from own sources (e.g. production, fleet)
    • Scope 2: Indirect emissions from purchased energy
    • Scope 3: Indirect emissions along the value chain (e.g. suppliers)

    (SMEs and companies whose Scope 3 emissions represent less than 40 percent of total emissions are not required to set a Scope 3 target).

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    How does the SBTi define science-based Scope 3 targets?

    For 67 percent of the Scope 3 targets, companies must set either an absolute reduction target, an intensity target or a supplier engagement target in line with SBTi. Exemptions apply for SMEs and for companies whose Scope 3 emissions are below 40 percent of total emissions. These do not have to set a Scope 3 target.

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    How are small and medium-sized enterprises (SMEs) defined?

    According to the SBTi, SMEs must fulfill the following criteria:

    • < 10,000 t CO2e-emission per year (Scopes 1 and 2 combined)
    • Do not belong or operate to sectors required to implement sector-specific standards (e.g. financial institutions or energy companies)
    • Are not subsidiaries of a parent company whose combined operations fall under standard validations

    Additionally, meet three or more of the following criteria: 

    • Fewer than 10,000 t CO2e emission per year
    • Fewer than 250 employees
    • Annual turnover below 50 million euros 
    • Fewer than 25 million euros in total assets
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    Supplier Engagement Target

    Is a science-based target mandatory for DB suppliers?

    Setting a science-based target is voluntary for DB suppliers. However, an increasing number of companies are setting their own science-based targets to meet their stakeholders’ expectations. DB expressly welcomes this development. Our goal is by 2029, 66 percent of suppliers (by emissions volume of the DB Group’s purchased goods, services, and capital goods (Scope 3.1/3.2)) will have adopted science-based emissions targets. We invite your active support in this effort.

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    What are the benefits of having a science-based target?

    A science-based target enhances a company’s competitiveness and attractiveness to investors or lenders. It also addresses current and forthcoming regulations, reduces exposure to carbon pricing, and mitigates cost risk (e.g. Carbon Border Adjustment Mechanism, etc.). In the future, the share of low-emission products and services will be increased by constantly expanding the consideration of their emissions associated with them into procurement decisions. Data transparency on emissions will become increasingly important for all parties involved.  

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    Who are the relevant DB suppliers for the SET (based on emission volume)?

    DB has calculated the GHG emissions of its purchased goods, services and capital goods using a spend-based approach. These Scope 3.1 and 3.2 emissions are derived based on the purchasing volume and an industry-average emission factor. The analysis  identifies the suppliers of DB responsible for the highest GHG emissions. SMEs are also included. Most of these suppliers are currently companies from Germany and other German-speaking European countries.

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    What about the suppliers not included yet in the category of suppliers relevant for the SET (based to emission volume)?

    In the initial assessment, DB focused on suppliers that are particularly relevant for the Supplier Engagement Target (SET) based on their emissions volume. However, the group and quantity may change in the coming years due to fluctuations in purchasing volumes of emission-intensive product categories. To account these changes and to gain obtain a broader , DB plans to expand the number  of suppliers included in its SET efforts from 2026 onwards.

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    Does the SET promote purchasing more sustainable goods and services?

    The SET paves the way for sustainable services or products made from recyclable, resource-efficient and/or environmentally friendly materials. As companies become climate-neutral, the production of their good and services will also become more climate-friendly over time.

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    What information does DB publish about its GHG footprint and climate protection measures?

    DB publishes its greenhouse gas footprint and all related sustainability measures annually in its Integrated Report of the DB AG. GHG emissions are disclosed transparently by scopes and categories, in particular results related to the Supplier Engagement Target.

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    Are there overlaps with sustainability ratings such as EcoVadis or an equivalent provider?

    The query of science-based targets does not replace an existing sustainability assessment and rating, as these serve different objectives. DB does not have access to the specific climate-related data provided in such sustainability assessments and ratings. However, companies that calculate their greenhouse gas emissions and set climate targets can reuse this data for ratings such as EcoVadis and thus achieve a better score.

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    Where can I find more information and official guidance on science-based targets?

    Further information can be found on the website of the Science Based Targets initiative (SBTi). If you have additional questions, please contact: klima@deutschebahn.com

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    Scope 3 Emissions

    Is DB planning to consider greenhouse gas emissions from products and services in future procurement procedures?

    To reduce greenhouse gas emissions in the supply chain, DB will progressively give preference to products and services with lower emissions in the future. This can be achieved either through corresponding description of the service or by incorporating criteria in the tender evaluation.

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    Which Scope 3 categories are affected by construction activities on DB infrastructure?

    Construction projects on DB infrastructure affect Scope 3.1 and 3.2 emissions. These are greenhouse gas emissions caused by the purchase of goods, services and capital goods.

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    Do DB suppliers create double accounting if they also account emissions from purchased goods, services and capital goods?

    Scope 3 emissions include the emissions from other companies within value chain. These emissions are therefore also recorded by those companies in their own Scope 1 and 2 emissions. This double counting of emissions is intentional and necessary to ensure all emissions across the value chain are comprehensively captured.

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    IntegrityNext

    What is IntegrityNext?

    IntegrityNext is a cloud-based platform that helps companies monitor and improve sustainability and compliance across their supply chains. It enables the collection, analysis, and management of supplier sustainability data (for example regarding climate targets). Data related to the Supplier Engagement Target is shared with DB through the corporate carbon footprint (CCF) assessment within the supplier profile on Integrity Next.

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    Is there an alternative to IntegrityNext with the Supplier Engagement Target assessment?

    The data collection on the climate targets of DB suppliers is conducted exclusively via the IntegrityNext IT platform. Due to the large number of suppliers, DB must rely on consistent standards and therefore cannot evaluate inputs from other sources. DB chose IntegrityNext for the implementation of the German Supply Chain Due Dilligence Act (LkSG) and for querying the climate targets, therefore minimizing administrative effort and resource use for suppliers. Suppliers can also share their IntegrityNext information with other business partners beyond DB.

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    How can a company demonstrate that its climate targets are SBTi-aligned without having them external validated by the SBTi?

    SBTi-aligned climate targets can be documented in the IntegrityNext assessment questionnaire. This is possible even without a formal, external SBTi validation. The reported targets in the CCF assessment are then evaluated based of the SBTi minimum requirements.

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