Sustainable Logistics: Green Fulfillment Practices

Sustainable logistics is not simply a matter of using recyclable boxes, installing LED lighting in a warehouse or featuring electric vehicles in marketing materials. In a fulfillment operation, environmental impacts arise at many points: packaging materials, warehouse electricity, product damage, excess inventory, carrier movements and returns. Each area requires its own data and a clearly defined system boundary—not one broad sustainability slogan.

In this guide, “green fulfillment” is not a certification or a claim of zero environmental impact. It is a management approach for measuring, prioritizing and reducing the environmental effects of physical operations, and for reporting the results with evidence. The basic sequence is: prevent unnecessary consumption and waste first; then assess opportunities for reuse; separate recyclable streams correctly; measure the remaining impact using a consistent method; and publish only what the evidence can support.

What does sustainable fulfillment cover?

Sustainability is a broad concept with environmental, social and economic dimensions. This guide focuses specifically on the environmental dimension. That does not make occupational safety, working conditions or financial continuity any less important.

An environmental review of an e-commerce fulfillment flow may cover at least the following areas:

• How products are transported to and received at the warehouse
• Pallets, boxes, void fill, tape, labels and other packaging materials
• Storage space, lighting, heating and cooling, and equipment energy use
• Put-away, replenishment, picking, packing and rework movements
• Incorrect orders, product damage, inventory discrepancies and preventable product loss
• Carrier handover, transport mode, distance and delivery outcome
• Returns and decisions on resale, repacking, repair, recycling or disposal
• The source of data relating to purchased services, waste and emissions

A systematic review of green warehousing literature found energy saving to be the most frequently studied subject, while building impacts and overall warehouse management were also prominent themes. The same review notes that empirical case data in the field remain limited. Savings reported at one facility therefore cannot be applied directly to Memnun Depo—or to another warehouse—without measurement. Green warehousing: systematic literature review

How should the baseline and system boundary be defined?

Before an organization can say that it has “reduced emissions,” it must establish what was measured, over which period and within which boundary. Combining warehouse electricity, packaging and carrier emissions into a single figure without defining that boundary may result in an incomplete inventory or the same impact being counted twice.

A baseline should be built around the following decisions:

1. Organizational boundary: Which company, facility, leased area and operations are included in the report?
2. Operational boundary: Which sources are measured—warehouse energy, owned equipment, purchased packaging, third-party transport, waste or returns?
3. Time boundary: Is the reporting period a calendar year, financial year or campaign period? Are normal and peak periods distinguished?
4. Functional unit: Alongside total impact, which intensity measure will be used—per order, order line, item shipped, kilogram or pallet-day?
5. Data quality: Does the figure come from a meter, invoice, purchasing record, carrier dataset or estimate? How will gaps and assumptions be disclosed?
6. Responsibility: Who produces, checks and approves the data, and where is the supporting evidence retained?

The GHG Protocol classifies direct emissions from sources owned or controlled by a company as Scope 1, indirect emissions associated with purchased energy as Scope 2, and other indirect value-chain emissions as Scope 3. This classification does not determine whether an operation is “green.” It helps establish a consistent inventory boundary and a clearer description of responsibility. GHG Protocol standards and guidance

If the measurement method changes after the baseline period has been selected, earlier periods should, where practical, be recalculated using the same method. If recalculation is not possible, the effect of the methodological change on comparability should be explained.

How should environmental KPIs and data quality be designed?

A single “carbon footprint” figure is not enough to manage an operation. Absolute impact and activity intensity should be monitored together. Electricity per order may fall while both total order volume and total electricity consumption rise; reporting only the intensity figure could therefore conceal an increase in total impact.

An initial KPI set may include:

• Energy: Monthly electricity and fuel use; total kWh, kWh/m², kWh/order or kWh/order line
• Packaging: Kilograms purchased and used by material type; packaging weight per parcel, empty-space ratio or repacking rate
• Operational quality: Rates of incorrect items, damage, rework and reshipment, with the source of responsibility distinguished
• Inventory: Products rendered unusable because of damage, expiry, loss or incorrect status
• Waste: Quantity by material and waste code, including the amount and outcome assigned to reuse, recycling, other recovery or disposal
• Transport: Where carrier data are available, shipment weight, distance, transport mode and calculated kg CO₂e, together with the method used
• Returns: Return rate, products restored to saleable stock, repacking, repair assessment, recycling and disposal outcomes
• Data coverage: The share of activity represented by actual operational data and the areas in which estimates are used

For every KPI, the numerator, denominator, measurement point, reporting period, excluded transactions, data owner and evidence source should be documented. A statement such as “packaging per parcel fell by 10%” is meaningful only if it identifies the parcel group, measurement basis, baseline period and whether product damage changed at the same time.

How should packaging prevention and right-sizing be managed?

The first packaging question should not be “Plastic or paper?” It should be: “What packaging is actually necessary for this shipment?” The waste hierarchy places prevention ahead of recycling. If unnecessary outer cartons, excessive void fill or duplicate layers are not used in the first place, there is less waste to collect and recycle later.

A right-sizing process can include the following steps:

• Record product dimensions, weight, fragility and existing retail packaging.
• Where a ready-to-ship carton genuinely meets transport requirements, avoid unnecessary repacking.
• For products that require packaging, create a limited but sufficient range of box sizes supported by clear selection rules.
• Measure empty space and void-fill use in sample orders rather than relying solely on visual judgment.
• For multi-item orders, test consolidation against product compatibility, damage risk, order lead time and carrier restrictions.
• Include small items such as tape, labels and documents in the material record.
• Pilot packaging changes with selected SKUs and transport conditions before wider implementation.

A comprehensive review of e-commerce packaging examines oversizing, material selection and the distribution process together. It also recommends testing the environmental advantages of a new packaging approach through life-cycle assessment. Sustainability in e-commerce packaging

Türkiye’s Regulation on the Control of Packaging Waste, dated 26 June 2021, establishes the current framework for packaging-waste reduction, separate collection, reuse, material recycling and the responsibilities of relevant parties. The obligations of the brand, packaging producer, party placing a product on the market, point of sale and fulfillment provider are not identical. The allocation of roles must be verified for the specific product and contract. Ministry of Environment, Urbanization and Climate Change

How should packaging materials and end-of-life be assessed together?

“Recycled,” “recyclable,” “reusable” and “biodegradable” do not mean the same thing:

• Recycled content means that a stated proportion of the material comes from secondary raw material. The proportion and supporting evidence must be available.
• Recyclability means that the packaging design and material can enter an appropriate collection, sorting and recycling stream. Caps, labels, adhesives and multilayer structures can affect the outcome.
• Reuse requires the packaging to retain its function over multiple cycles, supported by a return and cleaning system.
• Biodegradable or compostable claims are meaningful only when the relevant environment, time period and facility conditions are defined. They do not grant permission to discard packaging in nature.

Material selection should not be based on weight alone. Supplier technical documentation, evidence of recycled content, food- or product-contact requirements, printing and adhesive composition, separability within the available waste stream, sourcing distance and the actual end-of-life route should be assessed together.

Cardboard, plastic film, wood, strapping, label liners and product waste generated in the warehouse should be separated according to their characteristics, weighed and transferred to an appropriately authorized recipient. Handing waste to a collector does not, by itself, prove that it was recycled. Records should retain the waste type, weight, receiving organization, license or authorization details and the treatment applied. Current regulations and annexes are available on the Ministry’s legislation page.

For businesses placing packaged products on the EU market, Regulation (EU) 2025/40 on packaging and packaging waste will generally apply from 12 August 2026, while some provisions have different application dates. It introduces new requirements in areas including the packaging life cycle, prevention of unnecessary packaging, reuse and recycling. The obligations that fall on a brand, producer, importer or distributor must be assessed separately according to the product, provision and organization’s role in the relevant market. Regulation (EU) 2025/40

Where should improvements to warehouse energy, buildings and equipment begin?

LED lighting, solar panels or electric equipment may form part of an initial ideas list, but priorities should come from the facility’s actual consumption profile. Start with the main electricity meter and, where possible, separate lighting, charging, office areas, heating and cooling, and tenant spaces into sub-loads. Comparing invoice values alone can be misleading if season, operating hours, occupancy and workload are not recorded.

The review can follow this sequence:

1. Measurement: Verify meters, invoices, operating hours and the equipment inventory.
2. Avoidable consumption: Identify lighting left on in unoccupied areas, unsuitable schedules, idle devices, air leaks and similar losses.
3. Controls: Assess zoning, scheduling, daylight use and motion sensors together with safety requirements.
4. Efficiency: Compare lighting, motors, chargers, heating and cooling, and insulation options on a life-cycle cost basis.
5. Energy-source change: Evaluate renewable energy or electric equipment only with adequate data on consumption, grid capacity, charging, batteries, maintenance and contracts.
6. Verification: After implementation, measure consumption and service KPIs again under comparable operating conditions.

Research examining warehouse-related emissions through scenarios indicates that building design, energy source, equipment and operational decisions need to be considered together. Because its results are based on US scenarios, the reported figures should not be applied directly to Türkiye. Environmental impact of warehousing

Energy reduction must not weaken occupational safety or product-storage conditions. Lighting levels, fire systems, ventilation, temperature controls and equipment-charging rules must continue to meet applicable technical and legal requirements.

How do inventory, layout and process waste affect environmental impact?

Environmental impacts do not arise only from electricity and packaging purchases. Incorrect inventory, unnecessary movement and rework can require more space, energy, material and transport for the same order.

Process losses worth examining include:

• Repeated searching and counting caused by incorrect locations or inventory discrepancies
• Unnecessary movement because fast-moving products are stored in distant locations
• Picking-area shortages and unplanned replenishment trips
• Repacking and reshipment caused by an incorrect SKU or quantity
• Product and packaging damage caused by unsuitable stacking or packing
• Space use, obsolescence or expiry loss caused by inventory exceeding genuine demand
• Indefinite holding periods for unsaleable or quarantined inventory

Our warehouse layout guide examines walking and handling, while the inventory management guide covers alignment between system and physical inventory as well as replenishment controls. Improvements in these areas may contribute to lower energy use or emissions, but they should not be presented as environmental savings without measurement.

WMS and barcode records can make transaction volumes, errors and movement causes more visible. The presence of software is not, by itself, evidence of environmental performance. The organization must show which decision the system changed and how the relevant outcome KPI developed. For technology selection, see our guide to technologies that improve fulfillment efficiency.

How should the responsibility boundary be set for transport and last mile?

A fulfillment provider may prepare an order and transfer it to a carrier, but the carrier’s vehicle, route planning, load factor and final-delivery performance belong to a separate operational domain. If this boundary is not stated, warehouse improvements and carrier emissions can be incorrectly combined.

Where possible, the following data should be requested when assessing transport impacts:

• Shipment origin and destination region
• Actual or calculated weight and volume
• Transport mode, such as road, air, sea or rail
• Distance and number of transfers
• The carrier’s primary fuel or energy data, or its disclosed calculation method
• Failed deliveries, return transport and reshipments
• Whether the information comes from actual carrier activity or an average emissions factor

The GHG Protocol’s Scope 3 guidance for transportation and distribution distinguishes fuel-based, distance-and-mass-based and spend-based methods. It also helps clarify the reporting boundary for third-party warehousing and transport. Outbound transport purchased by the reporting company may fall within Category 4, while distribution of sold products not paid for by the reporting company may fall within Category 9. Estimates may be used when primary data are unavailable, but the factor, coverage rate and assumptions should be disclosed. Category 4: Upstream Transportation and Distribution

ISO 14083:2023 defines a common methodology for calculating and reporting greenhouse-gas emissions from passenger and freight transport chains. Stating that the standard was used does not mean that the calculation has been independently verified; the data, boundary and application must still be demonstrated. ISO 14083:2023

Options such as order consolidation, alternative delivery speeds or collection points may improve vehicle utilization in some scenarios. They should nevertheless be assessed alongside waiting time, inventory, failed deliveries and customer needs. For the operational aspects of carrier selection and delivery experience, see our last-mile logistics guide.

How should returns and circularity be managed together?

The best return is one that can be prevented through accurate product information, order validation or protective packaging. When a return still occurs, however, the product should not be released quickly and without control into saleable stock. Its identity, condition and decision authority must be recorded.

An environmental approach supports the following sequence:

1. Reduce preventable causes such as incorrect products, incomplete information, unsuitable packaging or transport damage.
2. Segregate the returned product from saleable inventory and inspect it with evidence.
3. Apply the client-defined decision matrix for resale, repacking, repair assessment, supplier return, recycling or legally compliant disposal.
4. Manage the physical movement separately from the return, refund or accounting decision.
5. Analyze outcomes by SKU, reason, channel, packaging type, carrier and period.

Sending a product for recycling is not always the first choice. Where safe and lawful reuse or resale is possible, more of the product’s value may be preserved. Hygiene, safety, serial or lot controls, product category and brand policy may nevertheless restrict that option. For an end-to-end process, see our guide to reverse logistics and returns management.

Why must life-cycle trade-offs be considered?

Reducing one environmental impact can increase another. Lighter packaging may reduce transport weight, but if it raises product-damage rates, the overall result may be worse. Reusable packaging may not deliver the expected benefit if it fails to reach a sufficient number of cycles or if reverse transport is inefficient. A recent life-cycle study of reusable e-commerce packaging likewise evaluates the outcome in relation to conditions such as the number of use cycles, return rate, cleaning and reverse transport. Reusable packaging life-cycle assessment Electric equipment may produce no exhaust emissions during use, but the electricity source, battery, charging infrastructure and service life remain relevant depending on the assessment boundary.

Alternatives should therefore be compared using the same function. For example:

• Instead of “one kilogram of packaging,” use “1,000 shipments that deliver the product without damage.”
• Instead of “one vehicle kilometer,” use “a defined weight of freight transported over a defined distance.”
• Instead of “one warehouse month,” use “orders or order lines processed at a defined service level.”

ISO 14044 provides a framework for life-cycle assessment covering goal and scope, inventory, impact assessment, interpretation, limitations and reporting. A complete LCA may not be practical for every packaging decision. Even so, a comparison should not claim that one option is “greener” without identifying the functional unit, life-cycle stages and data limitations. ISO 14044:2006

How should credible environmental claims and governance be built?

Improving environmental performance and communicating it in advertising are two separate control processes. The Turkish Ministry of Trade’s guidance on environmental claims states that broad expressions such as “green,” “sustainable,” “environmentally friendly,” “zero waste,” “recyclable” and “carbon neutral” should not be used without explanation. It also requires the relevant life-cycle stage and measurement basis to be stated. Guide on Advertisements Containing Environmental Claims

Amendments published on 1 July 2026 include environmental-claim provisions that will enter into force on 1 August 2026. The amendments strengthen requirements to explain general environmental statements, identify the relevant life-cycle stage and substantiate certificates or approvals with evidence from authorized or independent bodies. The current legal text should be checked again whenever a claim is prepared for publication. Turkish Ministry of Trade announcement

An evidence card can be prepared for every claim before publication:

• The exact wording of the claim
• The part of the product, service, facility or process it covers
• Baseline and comparison periods
• Absolute and intensity values
• Calculation method, emissions factor or testing standard
• Data source, coverage rate and assumptions
• Where certification or verification exists, the issuing body, scope and validity date
• The person responsible for approval and the next review date

A limited statement such as “During the second quarter of 2026, average cardboard weight per parcel across three selected box types fell by X% against the 2025 baseline for the same SKUs and damage scope” is longer than “our packaging is environmentally friendly,” but it is also more auditable. The value represented by X should be published only after actual measurement has been completed.

How should a low-risk implementation roadmap be prepared?

A sustainability program should begin with data and operational ownership, not with the announcement of an ambitious target. Although implementation time will vary according to the facility and its data maturity, the following sequence can be used:

1. Map the physical flow and responsibilities from receiving through returns.
2. Establish the current availability of electricity, fuel, packaging-purchase, waste, order, damage, return and carrier data.
3. Compare at least one normal period and one peak period using the same definitions.
4. Prioritize opportunities according to impact magnitude, degree of control, legal obligations, cost and data quality.
5. Define baseline KPIs for one packaging family, warehouse zone or process.
6. Pilot the alternative together with product protection, service level, occupational safety and total cost.
7. Compare absolute and intensity results, side effects and data coverage against the baseline.
8. Expand practices that are supported by evidence; do not publish claims that have not been demonstrated.
9. Document owners, review frequency and the corrective-action process.
10. Revalidate targets and claims at least annually or after a significant process change.

For the first project, choose the intersection of highest impact and strongest control—not simply the most visible area. Packaging may be under the brand’s control while the carrier fleet is not. Warehouse electricity may be measurable while product-manufacturing data remain unavailable. The priority matrix should make these differences explicit.

What is Memnun Depo’s verified sustainability boundary?

Memnun Depo’s currently verified and publicly supportable operational scope includes:

• Tracking receiving, SKU, inventory, pallet and rack, order and dispatch movements through WMS records
• Validating product and shipment matching through barcode workflows
• Defining packaging rules according to the client and product profile
• Preparing a separate quotation by size and type where packaging is required
• Picking, labeling and handing over transport-ready boxed products to the carrier without unnecessary repacking
• Processing returns according to the operating and decision rules agreed with the client
• Linking the shipping label, tracking number and carrier-handover record to the relevant order

These records may provide some activity data relating to orders, products and shipment movements. They are not, by themselves, evidence of an environmental measurement or benefit. Energy use, packaging weight, waste outcome and transport emissions require additional datasets. Memnun Depo transfers shipments to the carrier; it must not be presented as managing the carrier’s routes or vehicle operations.

Memnun Depo’s currently verified public brand facts do not include a carbon inventory, renewable-energy ratio, electric fleet, standard certified-packaging program, recycling rate, “carbon-neutral” or “zero-waste” claim, or environmental-management-system certification. This article does not claim that any of those capabilities are currently in place.

Where a client requests an environmental measurement or improvement project, the boundary for product, packaging, order, return and carrier data must be defined separately. Such work should not be treated as an automatic part of the existing fulfillment agreement. To review the current fulfillment flow, visit our services overview, or contact us to discuss a scope suited to your operation.

Frequently asked questions about sustainable logistics

Is recyclable packaging always more sustainable?

No. The amount of material used, whether the packaging protects the product, any non-recyclable components, the local collection and sorting infrastructure, and the actual end-of-life route all need to be considered. “Recyclable” does not mean that the material will necessarily be recycled.

Is paper packaging always more environmentally preferable than plastic?

There is no universal answer. Raw materials, production, weight, product protection, reuse, transport and end-of-life scenarios can all change the outcome. The alternatives should be compared using the same function and life-cycle boundary.

Can electric transport be described as zero-emission?

An electric vehicle may produce no exhaust emissions at the point of use. Electricity generation and the vehicle and battery life cycles may still contribute to environmental impacts, depending on the assessment boundary. If the phrase “zero-emission” is used, it should state clearly whether it refers only to tailpipe emissions or to a broader scope.

Can a fulfillment provider calculate carrier emissions?

A calculation can be supported where the carrier provides fuel, distance, weight, mode or verified emissions data. Parcel count alone does not reveal the actual route or vehicle load factor. If estimates are used, the method, emissions factor and data coverage should be disclosed.

What is the best first sustainability KPI?

There is no single universal KPI. The starting point should be the area in which the organization has both a significant impact and strong operational control. For many operations, a small set of absolute and intensity KPIs covering energy, packaging, damage and reshipment, waste and returns will be more meaningful than one figure alone.

Does Memnun Depo provide environmentally friendly or carbon-neutral services?

Memnun Depo’s verified public brand facts do not currently include a carbon-neutral claim or a general claim of providing an “environmentally friendly service.” Packaging and operating rules can be defined according to the client and product profile. An environmental result can be published only after its scope, baseline, method and measurement have been completed.

Sources and further reading

• Bartolini, M., Bottani, E. and Grosse, E. H. (2019). Green warehousing: Systematic literature review and bibliometric analysis.
• Ries, J. M., Grosse, E. H. and Fichtinger, J. (2017). Environmental impact of warehousing: A scenario analysis for the United States.
• Escursell, S., Llorach-Massana, P. and Roncero, M. B. (2021). Sustainability in e-commerce packaging: A review.
• Park, J., Waqar, Z. and Snyder, W. R. (2024). Environmental analysis of returnable packaging systems in different eCommerce business and packaging management models.
• GHG Protocol. Standards and Guidance and Corporate Value Chain Scope 3 Standard.
• GHG Protocol. Category 4: Upstream Transportation and Distribution.
• ISO. ISO 14083:2023 — Transport chain greenhouse-gas accounting.
• ISO. ISO 14044:2006 — Life cycle assessment requirements and guidelines.
• Ministry of Environment, Urbanization and Climate Change of the Republic of Türkiye. Announcement on the Regulation on the Control of Packaging Waste and waste-management legislation.
• Ministry of Trade of the Republic of Türkiye. Guide on Advertisements Containing Environmental Claims.
• Ministry of Trade of the Republic of Türkiye. Announcement on the advertising-regulation amendments dated 1 July 2026.
• European Union. Regulation (EU) 2025/40 on packaging and packaging waste.

This article provides general information on operations and measurement. It is not legal, environmental-compliance, certification or emissions-verification advice. Current legislation and appropriately qualified professional advice should be consulted separately for obligations relating to products, packaging, waste, transport and advertising.