Net Zero
The “Scope 3” Challenge.
For most organisations, over 80% of carbon emissions lie outside their direct control—in the supply chain (Scope 3). This is where generic consulting fails.
RSustain closes the data gap. We design and coordinate supplier data-collection frameworks, supporting clients in obtaining primary data while maintaining clear data ownership and audit traceability.
Our Framework
- 01. Measure: Full GHG Inventory (Scope 1, 2 & 3).
- 02. Commit: Set Near-Term & Long-Term SBTi Targets.
- 03. Decarbonise: Energy efficiency, RE procurement, and inset projects.
Technical Services
Carbon Footprinting
GHG inventories aligned with ISO 14064-1 and the GHG Protocol, providing a defensible baseline for assurance-ready reporting.
SBTi Target Support
We support target development and manage submissions to the Science Based Targets initiative. Target approval remains the sole decision of SBTi.
LCA (Life Cycle Assessment)
Product-level analysis (Cradle-to-Grave) to help you create Environmental Product Declarations (EPDs).
RSustain UK provides advisory, system design, and implementation support. We do not provide verification, validation, or assurance services.
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Free interactive carbon footprint calculator covering Scope 1, 2, and 3 emissions with instant PDF report.
Start Free Assessment →CBAM Pre-Check
EU Carbon Border Adjustment Mechanism compliance screening — check your import exposure in 5 minutes.
Check Exposure →Upskill Your Team: CBAM Compliance
EU CBAM implementation — reporting obligations, emission verification, and free allocation phase-out. 20 hours.
Further Reading
Assurance-Ready Carbon Systems
We help organisations build carbon systems that are not only useful for management decisions but also defensible under investor, regulator and assurance scrutiny. This includes Scope 1, 2 and 3 calculation files, emission-factor registers, supplier data trails, SECR-ready outputs, SBTi preparation, reduction-roadmap documentation and board-level transition planning.
Transition Plan Evidence Packs
We prepare transition-plan evidence packs that connect emissions baselines, reduction levers, financial implications, governance responsibilities and delivery milestones. These packs support SECR, TCFD, ISSB S2 and CSRD-aligned climate reporting.
Calculation File Discipline
GHG Protocol-aligned calculation files with documented emission factors, activity data sources, conversion notes and quality controls — ready for third-party review.
Supplier Data Trails
Scope 3 data collection frameworks with documented supplier engagement, data quality ratings, estimation methodologies and improvement plans.
Group Carbon Experience
The wider RSustain group track record includes industrial decarbonisation and GHG verification-aligned systems experience. RSustain UK translates this discipline into UK-ready carbon accounting, SECR reporting and transition-planning support.
This practical delivery background — including CO₂ compressor retrofits, energy efficiency projects and GHG inventory systems — means our carbon advisory is grounded in operational reality, not theoretical models.