GHG Inventory & Science-Based Target Commitments

Background

A mid-sized Architecture, Engineering, and Construction (AEC) firm engaged Nova after two Fortune 500 clients required a comprehensive greenhouse gas (GHG) inventory and validated Science-Based Targets to remain in their supply chain.

Failure to meet these requirements posed significant revenue and reputational risk.

Supply Chain Ripple Effect

These demands reflect a broader market shift: credible climate action is quickly becoming a differentiator for privately held mid-sized supply chain companies.

Over 90% of many organizations’ emissions reside in their supply chains, making supplier climate performance a strategic priority.

Since completing its GHG inventory and securing SBTi-validated targets, the firm has received additional requests from clients to complete EcoVadis and CDP assessments.

Solution

Nova Scope of Work

1. Scopes 1 & 2

• FY2023 & FY2024 inventory development

• Aligned to GHG Protocol

• Utility bill analysis

• Gap‑filling models for fleet and fugitive emissions

2. Scope 3

• Identified applicable Scope 3 categories

• Analyzed accounting & business‑travel data

• Built gap‑filling models

• Construction embodied‑carbon analysis

3. Data Strategy

• Identified data collection improvements

• Built a year‑over‑year inventory framework

• Defined SBTi‑aligned reduction checkpoints

4. SBTi

• Led Science-Based Target modeling, validation, and submission coordination with SBTi reviewers

5. Report

• Created a stakeholder-ready report, complying with SBTi public disclosure requirements

Through its partnership with Nova and the successful completion of steps 1–5, the firm avoided losing two major clients and is now ready to implement reduction strategies that

support its SBTi commitments.

The Nova Advantage

Whether your firm is establishing an initial emissions baseline or strengthening existing reporting, Nova’s sustainability platform can help you meet your goals. What sets Nova apart:

✅ In-house SBTi Certified Expert (1 of only 10 in the U.S.) with advanced Scope 3 & 1.5°C -    target expertise; ISO 14064 Lead Verifiers

✅ Actionable asset‑ and portfolio‑level strategies that enable

clients to achieve their decarbonization goals

✅ Hands-on support as client requests expand to EcoVadis, CDP, and other third-party assessments and frameworks

Looking Ahead

Sustainability isn’t just a requirement, it’s a competitive advantage.

Partner with Nova to get ahead of what your clients will ask for next.

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