Inform Your Climate Strategy
Our team helps manage greenhouse gas emissions across public and private sectors.
Why should companies measure their emissions?
Benefits of conducting a greenhouse gas inventory:
Enhance Efficiency
Understand emissions hotspots and develop strategies to reduce them
Inform Strategy
Use data to prioritize investment and action on high-emission areas of business
Reduce Costs
Minimize fuel usage and energy spending
Stay Competitive
Measuring emissions is a market essential; build trust and leadership with investors and customers
Ensure Compliance
Align with mandatory regulations likeCalifornia’s SB 253 and the EU’s CSRD
A GHG inventory enables alignment with key disclosures, including:
How do you measure GHG emissions?
Review GHG accounting standards and develop a plan
Identify data requirements and fill gaps
Calculate emissions using appropriate emissions factors and methodologies
Conduct quality assurance checks and summarize findings to share with stakeholders
An emissions inventory spreadsheet, including all activity data, calculations, emissions factors, and results for the reporting period
A document detailing the company’s GHG inventory process, including the inventory scope and boundaries, data collection methodology, and quality assurance and control procedures
A high-level emissions inventory report that identifies key findings, including emissions by scope, emission intensity metrics, largest emission sources, and reduction opportunities
G&A’s emissions methodology and calculations are aligned with the GHG Protocol Corporate and Accounting and Reporting Standard. By using this standard, G&A will ensure that your inventory is of the highest integrity and ready for assurance by an independent third party.
Annie Roberts
Senior Vice President - Climate ConsultingUnderstanding a Scope 1+2 GHG Emissions Inventory
Accounting for Scope 1 and 2 GHG emissions is a foundational step in understanding a company’s environmental impact and is necessary to inform corporate climate strategy.
Scope 1 Emissions – Direct GHG emissions that come from sources that are directly owned or controlled by your company. This can include emissions from:
- The combustion of fuels in onsite boilers, furnaces, incinerators, and generators
- Transport from the combustion of fuel in company-owned vehicles (e.g., forklifts, cars, vans, trucks, planes, etc.)
- Refrigerant loss from HVAC systems, coolers, and freezers
Scope 2 Emissions – Indirect GHG emissions generated from purchased energy including electricity, steam, heating, and cooling.
Most companies calculate their emissions annually to align with reporting cycles and investor expectations. Regular updates also allow tracking of emissions trends and progress against reduction targets.
Using recognized methodologies like the GHG Protocol, leveraging reliable emission factors, and undergoing third-party verification for credibility all support an accurate inventory.
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July 2025 
