What is the Global Biodiversity Score (GBS)?
A science-based tool to assess and act on your organisation’s biodiversity footprint.
The Global Biodiversity Score (GBS), developed by CDC Biodiversité, is a robust, streamlined tool designed to quantify your organisation’s impact and dependency on biodiversity across the entire value chain.
It works directly from your company’s data, whether financial data, inventory data, or environmental pressure data, and combines several scientific models (including GLOBIO and EXIOBASE) to translate complex inputs into a single, actionable impact metric: MSA.km².
This approach ensures that decision-makers can rely on their own data to measure biodiversity impacts, understand dependencies, define goals, targets and trajectories aligned with the Kunming-Montreal Global Biodiversity Framework and align strategies with frameworks such as TNFD, CSRD, etc.
The MSA.km² metric
Mean Species Abundance (MSA) is a scientific metric that measures the average abundance of species in an ecosystem compared to its natural state (undisturbed habitat = 100%).
- Simple yet robust: one number to summarise biodiversity intactness.
- Science-based: widely used in ecological modelling and policy frameworks.
- Action-oriented: expressed in MSA·km², it shows the scale of biodiversity loss or gain linked to human activities. For example, an impact of 1 MSA.km² is equivalent to the destruction of 1 km² of undisturbed natural ecosystem.
This metric makes it possible to compare impacts across sectors, geographies, and pressures, and to track progress over time.
Why use the GBS?
Comprehensive footprint
Measure biodiversity impacts and dependencies across your entire value chain—Scope 1, 2, and 3.
Science-driven, continuously evolving & transparent
Built on recognised peer-reviewed models (GLOBIO, EXIOBASE), continuously evolving to align with scientific progress, with an open-source version to promote innovation.
Easy to use platform
Designed for ease of use, upload your data and generate results, no installation needed. Benefit from dynamic visualisations, multi-format outputs, easily exportable Excel files, and a complete history of your runs.
Multi-stakeholder ecosystem
Developed collaboratively with businesses, financial institutions, NGOs, and public authorities through the B4B+ Club.
Alignment with global frameworks
Ensure consistency with leading sustainability frameworks such as CSRD, TNFD, SBTN, GRI, and the Global Biodiversity Framework (GBF), making reporting and target-setting credible.
How does the GBS work?
Measurement approach
Links your economic activity to biodiversity pressures and converts them into impacts expressed in a single metric (MSA.km²).
Modular & adaptable
From corporate assessments to financial portfolios and territorial applications, the GBS adapts to different user needs.
Actionable outcomes
Inform impact reduction targets and trajectories, monitor progress, and align with global biodiversity and reporting frameworks.
Ready to get started?
Join companies, financial institutions, and public authorities in measuring biodiversity impact with confidence.