What is CO₂-equivalent (CO₂e)?

CO₂-equivalent is the standardized unit used to express the climate impact of all greenhouse gases against a single reference (CO₂). It is calculated by multiplying the mass of the gas by its 100-year Global Warming Potential.

What is the difference between Scope 1, 2 and 3?

Scope 1: direct emissions from owned/controlled sources. Scope 2: indirect emissions from purchased energy. Scope 3: all other indirect emissions across 15 supply-chain categories, typically the largest in absolute terms.

Which emission factors does TreeBlock use?

TreeBlock uses IPCC AR6 for GWPs, DEFRA / UK Government for most operational categories, AIB European Residual Mix for market-based European electricity, Terna for location-based Italian electricity, and ISPRA for Italy-specific factors. All factor versions are recorded in the audit trail.

How long does the first GHG calculation take?

For an SME with average data quality, first Scope 1+2 typically takes 20-40 hours with TreeBlock. Scope 3 (15 categories) can take 40-80 hours in year one, reduced to 10-20 in subsequent years thanks to baseline reuse.

GHG Calculator | Measure and reduce emissions

Name: GHG Calculator
Brand: TreeBlock

Standards and ESG Certifications

Why are they essential for your company?

GHG Protocol – A globally recognized methodology for calculating and managing greenhouse gas emissions.
ISO 14064 – An international standard for the quantification, monitoring, and reporting of greenhouse gas emissions.

GHG

ISO 14064

Advanced Calculation and Reporting

Reliable Data

Timely collection and automatic controls for transparent, verifiable emission calculations.

Global Standards

Aligned with GHG Protocol and ISO 14064. Ready for audits and verifications.

Continuous Monitoring

ESG performance at a glance. Automatic trends and comparisons updated in real-time.

Intuitive Analysis

Clear dashboards and smart filters for quick, confident decision-making.

Data Automation

Less error, less manual work. Direct management integrated with company data sources.

Shared Reports

Compliance-ready reports for stakeholders and regulators. One-click export.

Why choose TreeBlock?

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Certified calculations

Guaranteed and verifiable accuracy. Reliability of ESG data that stands up to any audit.

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Reduced time

Automation that cuts time. Operational report generation reduced by up to 70%.

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Guaranteed compliance

Full alignment with standards. From data collection to reporting, compliance always ensured.

Technology and Innovation
At the service of corporate sustainability

GHG reports validated on Blockchain ensuring transparency, security, and immutability of information.
TreeBy, the proprietary AI, simplifies data management automatically collected and analyzed with precision.
Immediate and automatic access to detailed information, minimizing manual entry time.

TreeBlock's GHG calculator (Greenhouse Gas) is the software that automates the calculation of carbon-dioxide-equivalent (CO₂e) emissions generated by your business activity. Compliant with the GHG Protocol and ISO 14064-1, it covers all three emission scopes (Scope 1 direct emissions, Scope 2 indirect emissions from purchased energy, Scope 3 indirect supply-chain emissions) and produces a GHG Inventory ready for sustainability reporting, customer questionnaires, ESG-linked banking requests and third-party verification.

What is the GHG Protocol and why is it the reference standard?

The GHG Protocol is the global standard for greenhouse-gas accounting of companies, products and cities. Developed by WRI and WBCSD, it is adopted by 92 percent of Fortune 500 companies and is the methodological basis of ISO 14064-1, ESRS E1, GRI 305 and CDP Climate Change.

It covers seven Kyoto/Doha greenhouse gases (CO₂, CH₄, N₂O, HFC, PFC, SF₆, NF₃) expressed in CO₂-equivalent through the IPCC 100-year Global Warming Potential. The cornerstone methodological choice is the split into three Scopes that reflect the level of control over the emission source.

Scope 1, 2, 3: how to calculate them

Scope 1 covers direct emissions from owned or controlled sources (fuels, refrigerants, processes). Scope 2 covers indirect emissions from purchased electricity, steam, heat and cooling. Scope 3 covers 15 distinct categories of supply-chain emissions, from raw materials and business travel to product end-of-life. Total carbon footprint = Scope 1 + 2 + 3.

The base formula is: emission (kgCO₂e) = activity data (litres, kWh, km, kg) multiplied by the emission factor (kgCO₂e per unit). Emission factors come from IPCC, DEFRA / BEIS, AIB European Residual Mix and ISPRA. TreeBlock auto-updates factors on every official release.

Frequently asked questions on GHG calculation

What is CO₂-equivalent (CO₂e)?: CO₂-equivalent is the standardized unit used to express the climate impact of all greenhouse gases against a single reference (CO₂). It is calculated by multiplying the mass of the gas by its 100-year Global Warming Potential.
What is the difference between Scope 1, 2 and 3?: Scope 1: direct emissions from owned/controlled sources. Scope 2: indirect emissions from purchased energy. Scope 3: all other indirect emissions across 15 supply-chain categories, typically the largest in absolute terms.
Which emission factors does TreeBlock use?: TreeBlock uses IPCC AR6 for GWPs, DEFRA / UK Government for most operational categories, AIB European Residual Mix for market-based European electricity, Terna for location-based Italian electricity, and ISPRA for Italy-specific factors. All factor versions are recorded in the audit trail.
How long does the first GHG calculation take?: For an SME with average data quality, first Scope 1+2 typically takes 20-40 hours with TreeBlock. Scope 3 (15 categories) can take 40-80 hours in year one, reduced to 10-20 in subsequent years thanks to baseline reuse.

Calculate your company Scope 1, 2 and 3 emissions in minutes with the TreeBlock GHG calculator. Book a free demo or join the Essential plan to start building your GHG Protocol / ISO 14064 compliant inventory.

Corporate Carbon Footprint