Carbon · GHG assurance · ESG data
Carbon, ESG data and sustainability strategy.
Carter Sustainability Consulting supports organisations from strategy through to implementation — developing carbon methodologies, improving ESG data governance, reviewing GHG inventories, supporting transactions and redesigning the processes and systems behind sustainability reporting.
- Scope 1
- Direct
- Scope 2
- Purchased energy
- Scope 3
- Value chain
- Scope 1, 2 & 3
- GHG Review
- Due Diligence
- Data Governance
- Strategy
- AI & Automation
The problem
Sustainability problems are increasingly data problems.
Corporate carbon accounting and ESG reporting depend on information spread across systems that were never designed to produce emissions figures.
Energy records
Finance systems
Procurement systems
Supplier information
Travel data
Operational systems
Invoices
Spreadsheets
Reporting platforms
Third-party emissions datasets
The result is a familiar set of problems: missing data, inconsistent classifications, uncertain boundaries, incorrect emission factors, manual calculations, weak documentation, supplier-data gaps, changing methodologies, complex scope 3 calculations, poor data traceability, inefficient reporting processes, unclear sustainability strategy, fragmented ownership across functions, weak data governance, unclear accountability for esg metrics, inconsistent reporting processes, poorly defined operating models, sustainability programmes that are difficult to implement, lack of integration between sustainability, finance, procurement and technology, unclear technology or data roadmap, duplicated manual processes, insufficient controls around reported esg information.
Carter Sustainability Consulting helps organisations turn these inputs into clear, defensible outputs.
Calculate
Build robust Scope 1, 2 and 3 emissions inventories using clear methodologies and appropriate data.
Review
Independently test calculations, boundaries, assumptions, emission factors and supporting evidence.
Improve
Strengthen data quality, reporting processes and automation so the methodology becomes more reliable and repeatable.
Three levels
Strategy, governance and delivery — not carbon calculation alone.
Strategy
What should the organisation do, why, and in what order?
Sustainability, ESG and net-zero strategy, operating-model design, prioritised roadmaps and business cases grounded in delivery reality.
Governance & data
How should sustainability information be owned, controlled, structured and trusted?
Data-governance frameworks, ownership and accountability, source-to-report mapping, data lineage, reporting controls and evidence retention.
Delivery
How are the calculations, reporting processes, systems and improvements actually implemented?
Scope 1, 2 and 3 carbon accounting, GHG review and assurance readiness, due diligence, process redesign, analytics, AI and automation.
Two routes in
Build the numbers, or interrogate them.
For organisations
Build better sustainability information
- Scope 1, 2 and 3
- GHG inventories
- Scope 3 methodology
- Emissions factors
- Supplier emissions
- ESG data
- Carbon reporting
- Assurance readiness
- Analytics
- Automation
For investors & lenders
Understand what sits behind the numbers
Independent carbon and ESG analysis examining:
- Methodologies
- Source data
- Assumptions
- Emissions
- Targets
- Transition plans
- Climate risks
- Supporting evidence
Services
Specialist work across the carbon and ESG data chain.
- 01
Carbon accounting & GHG inventories
Scope 1, 2 and 3 carbon accounting
- 02
Scope 3 & supply chain carbon
Solving the difficult part of corporate carbon accounting
- 03
GHG inventory review
Independent review of Scope 1, 2 and 3 inventories
- 04
GHG assurance readiness
Prepare your GHG inventory for formal verification
- 05
Independent GHG assurance
Independent GHG assurance
- 06
Carbon due diligence
Independent carbon analysis for investors and lenders
- 07
ESG due diligence
ESG due diligence for lenders and investors
- 08
ESG & sustainability data
Turn sustainability data into something you can trust
- 09
Data governance
Build sustainability data that is controlled, traceable and usable
- 10
Sustainability strategy & transformation
Turn sustainability objectives into a practical delivery plan
- 11
AI & sustainability automation
Use AI where it genuinely improves the process
- 12
Advisory & project support
Specialist sustainability capacity when you need it
The recurring question
What is reliable, what is uncertain, what is missing and what needs to improve.
Whether the work is building an inventory, reviewing one, or examining a target company before a transaction, the same four questions apply. Answering them properly requires tracing figures back to source data, not accepting a total at face value.
Discuss a projectNeed specialist sustainability support?
Tell me what you're trying to solve. Carter Sustainability Consulting can assess the problem, identify where specialist support would add value and propose a practical way forward.