GHG Emissions Reduction

Business Case

Brand reputation

Companies that drive real decarbonization maintain credible climate claims, avoid greenwashing risk, attract talent and improve brand value.

Financial resilience

Supply chain climate risk mapping reveals physical risks (drought, flooding, extreme heat), transition risks (carbon pricing, regulation) and financial risks (rising insurance costs, stranded assets) that cumulatively eroding profitability, affecting supply and increasing cost pressure, making proactive climate risk reduction a direct investment in cost management. Emissions reductions can be achieved through increased efficiency, less or better material use, optimized operations and reduced waste, presenting direct opportunities to decrease cost.

Legal and regulatory compliance

Procurement teams are increasingly responsible for Scope 3 data collection and supplier compliance with emerging regulations (CSRD, CBAM, EUDR).

Market access

Institutional buyers, government procurement bodies and major customers may require evidence of emissions reduction commitments and progress from their supply chains. Companies without credible decarbonization strategies face exclusion from tenders.

Operational continuity

Decarbonized supply chains are less exposed to fossil fuel price volatility, carbon pricing shocks and climate-related physical disruptions. Investment in supplier decarbonization strengthens long-term supply security.

Strategy & Planning

Assessment

Initial Action

Map supply chain climate risk exposure (physical risks such as drought, flooding, extreme heat; transition risks such as carbon pricing, regulation; financial risks such as rising insurance costs, dependency risks for suppliers in regions highly vulnerable to climate disruption) and identify the highest-impact decarbonization opportunities in priority procurement categories using known carbon hotspots (energy-intensive manufacturing, long-distance logistics, high-emission materials, carbon-intensive agriculture) even where precise emissions data is not yet available, quantifying cost related to risk exposure as much as possible.

Intermediate Progress

Conduct detailed emissions reduction opportunity analysis for priority categories, identifying specific decarbonization levers (energy efficiency, fuel switching, process improvements, material substitution) and their abatement potential and cost. Where emissions data is available, use it to prioritize; where it is not, use industry benchmarks and known high-impact levers.

Advanced Practice

Conduct comprehensive decarbonization pathway analysis across all procurement categories, identifying remaining high-emission areas and evaluating emerging technologies and solutions.

Policy

Initial Action

Establish expectations for supplier emissions reduction, covering both immediate action on known high-impact areas (energy efficiency, logistics optimization, waste reduction, material substitution) and longer-term commitment to science-based targets as measurement matures.

Intermediate Progress

Require suppliers in priority categories to:

  • have formal emissions reduction targets
  • adopt a minimum supplier decarbonization standard, with defined actions on efficiency, renewable energy and logistics optimization within the first 12–24 months
  • create and deliver on an annual decarbonization action plans, aligned to recognized frameworks (SBTi, GHG Protocol)
Advanced Practice

Embed emissions reduction performance as a weighted factor in all procurement decisions, with preference for lower-carbon suppliers and products, reviewing and adjusting criteria annually based on progress toward targets aligned with SBTi or sector-specific pathways.

Targets

Initial Action

Work with sustainability team to set Scope 3 emissions reduction targets for upstream procurement-relevant categories under the GHG protocol aligned with science-based targets methodology, with a defined timeline to reach net zero for upstream scope 3.

Intermediate Progress

Set targets for percentage of suppliers covered by science-based targets based on spend, criticality or other selection criteria, with sensitivity to supplier size and regulatory context.

Advanced Practice

Review and increase multi-year Scope 3 reduction targets in line with latest guidance, ensuring procurement targets remain aligned with 1.5°C pathways, and drive for alignment in decarbonization efforts specific to the buyer organizations' commitments.

Supplier Selection

Screening

Initial Action

Add decarbonization-related questions to pre-qualification, such as whether the supplier has an emissions reduction target, what decarbonization initiatives are underway or planned and whether they have committed to or are aligned with science-based targets.

Intermediate Progress

Require suppliers to provide evidence of emissions‑reduction plans and decarbonization progress in RFPs, including specific actions taken, timelines for planned initiatives, investment committed and measurable outcomes achieved to date with documentation of operational efficiency improvements (energy efficiency upgrades, equipment retrofits, logistics optimization).

Advanced Practice

Require suppliers to have an approved science-based target and demonstrate verified emissions reductions from operational changes (not offsets) through third-party abatement results as a prerequisite to qualify for RFP.

Selection

Initial Action

Prioritize suppliers that demonstrate awareness of their emissions impact and have taken initial steps toward decarbonization.

Intermediate Progress

Allocate points in selection criteria for suppliers demonstrating verified decarbonization progress, such as year-over-year efficiency improvements, completed energy transitions or approved science-based targets.

Advanced Practice

Select suppliers demonstrating the strongest decarbonization performance, especially suppliers allocating emissions reductions based on direct decarbonization actions (e.g., renewable energy installations, material switching).

Contracts

Initial Action

Include contractual clauses requiring suppliers to make a climate commitment within a specified time frame.

Intermediate Progress

Include clauses requiring suppliers to report on decarbonization actions and progress annually with documentation proof of reduction claims.

Advanced Practice

Require suppliers to achieve defined emissions reduction milestones within specified timeframes with independent verification of decarbonization claims and add escalation clauses requiring corrective‑action plans when progress falls below expectations.

Supplier Engagement

Goal Setting

Initial Action

Communicate climate expectations and align with suppliers on decarbonization priorities, starting with known high-impact actions (energy efficiency improvements, logistics optimization, waste reduction, material substitution) that can be pursued immediately.

Intermediate Progress

Work with suppliers to set emissions reduction targets and establish specific, time-bound decarbonization milestones.

Advanced Practice

Develop multi-year decarbonization roadmaps with strategic suppliers, with defined milestones, investment commitments and accountability mechanisms.

Capacity Building

Initial Action

Host introductory sessions on decarbonization fundamentals, covering key reduction levers, the business case for efficiency improvements and how to identify quick wins that reduce both emissions and costs.

Intermediate Progress

Conduct supplier training on implementing specific decarbonization levers (energy efficiency, fuel switching, process improvements, material substitution), including how to build a business case for decarbonization investments and develop internal decarbonization roadmaps.

Advanced Practice

Provide advanced training to suppliers on emerging decarbonization technologies and low-carbon material alternatives that go beyond operational efficiency, such as electrification, green hydrogen, carbon capture and next-generation materials; or provide train the trainer sessions for suppliers to cascade decarbonization activities within their supply chains.

Data

Initial Action

Request information from suppliers on current decarbonization initiatives, planned investments and progress, including practical actions taken (e.g., energy efficiency upgrades, logistics changes, material switches) even where formal emissions data is not yet available.

Intermediate Progress

Collect detailed decarbonization progress data from suppliers, including actions taken, investments deployed and, where available, emissions avoided.

Advanced Practice

Work with suppliers to track and verify product-level emissions reductions over time, integrating decarbonization action tracking with verified emissions data for comprehensive impact reporting.

Advisory

Initial Action

Provide guidance to suppliers on identifying their highest-impact decarbonization opportunities, starting with operational efficiency and known carbon hotspots, and work together to help them set science-based targets.

Intermediate Progress

Support suppliers in building a decarbonization strategy, such as helping identify emission hotspots using their GHG inventory or industry benchmarks, developing and reviewing marginal abatement cost curves, prioritizing reduction actions by impact, cost and feasibility and determining quick wins vs longer-term structural changes.

Advanced Practice

Facilitate peer learning among suppliers on successful decarbonization strategies and support suppliers in identifying reduction opportunities beyond operational efficiency.

Financial Support

Initial Action

Fund supplier access to decarbonization assessment tools, energy audit resources and SBTi guidance materials.

Intermediate Progress

Establish incentives and benefits for suppliers that achieve emissions reduction goals through preferential contract terms (price, duration, preferred status), facilitate access to green financing for supplier decarbonization investments or co‑fund equipment‑upgrade pilots where abatement potential is high.

Advanced Practice

Make advance purchase commitments or long-term offtake agreements for low-carbon materials to de-risk supplier investment in decarbonization; co-invest in supplier decarbonization infrastructure where strategic.

Audits

Initial Action

Require suppliers to complete self-assessment questionnaires on decarbonization practices, covering reduction targets, initiatives underway, efficiency improvements and progress to date.

Intermediate Progress

Conduct on-site supplier decarbonization progress assessments, verifying that reported reduction actions have been implemented, such as checking that equipment upgrades are installed and operational, reviewing energy bills and fuel purchase records against reported data, confirming production process changes match emissions calculations and verifying that logistics or material switches have taken place; alternatively, work with suppliers to obtain audited reduction results.

Advanced Practice

Engage third-party verification to audit supplier decarbonization claims and progress against targets.

Project Partnerships & Innovation

Initial Action

Launch pilot decarbonization projects with suppliers in highest-impact categories, focusing on practical reduction actions (e.g., energy efficiency retrofits, logistics route optimization, packaging reduction) that deliver results regardless of emissions measurement maturity.

Intermediate Progress

Scale successful decarbonization pilots into operational programs across additional suppliers and categories, and run supplier innovation challenges inviting suppliers to propose novel emissions reduction solutions for shared supply chain challenges.

Advanced Practice

Lead industry collaborations with suppliers, technology providers and sector peers to develop and scale decarbonization solutions across shared supply chains, such as low-carbon material alternatives, process innovations or shared infrastructure for emissions reduction.

Continuous Improvement

Metrics

Initial Action

Track the following:

  • percentage of suppliers with formal emissions reduction targets
  • percentage of supplier spend covered by approved science-based targets
  • number of suppliers engaged in buyer decarbonization programs
  • number of suppliers implementing decarbonization initiatives
Intermediate Progress

Track progress indicators such as:

  • percentage of priority categories with active decarbonization programs underway
  • percentage of engaged suppliers reporting year-over-year improvement in energy efficiency or emissions intensity
Advanced Practice

Track indicators such as:

  • avoided emissions from procurement decisions (low-carbon material switches, supplier improvements)

Scorecards

Initial Action

Include basic decarbonization indicators in supplier scorecards (reduction commitment, SBTi status, decarbonization initiatives underway).

Intermediate Progress

Integrate decarbonization KPIs into supplier performance reviews and business reviews, including target progress, action completion, and where available, emissions intensity trend; and require corrective action plans for suppliers not meeting climate commitments.

Advanced Practice

Weigh decarbonization performance in supplier scorecards, with top performers receiving preferential weighting in tenders and bottom performers required to submit improvement plans.

Impact Verification

Initial Action

Gather feedback from suppliers on effectiveness of decarbonization engagement programs.

Intermediate Progress

Calculate:

  • scope 3 reductions and estimated emissions avoided attributable to supplier engagement programs, using both action-based estimates and verified emissions data where available
  • capital‑deployment effectiveness, measuring ROI of supplier decarbonization investments
Advanced Practice

Calculate total avoided emissions attributable to procurement decisions and supplier engagement and the gap to goal across priority suppliers and spend categories.

Sources consulted

GHG Emissions Data Management Supply Chain Energy Transition (Scope 3)