Biodiversity Footprint Calculator

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📘 What is the PDF Metric?

PDF stands for Potentially Disappeared Fraction of species. It estimates the fraction of species likely to disappear in a square meter of land over one year due to human activities like land use, emissions, or water extraction.

PDF·m²·year is a scientific metric widely used in life cycle assessment (LCA) and biodiversity research.

A higher PDF value means a higher potential biodiversity loss.

Examples of activities that increase PDF:

• • Deforesting tropical forests
• • Converting natural land into agriculture or urban areas
• • Excessive water extraction in sensitive ecosystems
• • Emissions that contribute to climate-driven habitat loss

🔄 From PDF to Tebu

A Tebu is a Terrasos Biodiversity Unit that represents a verified positive biodiversity outcome, through preservation and restoration activities.

1 Tebu = 10 m² of biodiversity gains over 30 years = 300 PDF·m²·year.

This means if your footprint is 3,000 PDF·m²·year, you'd need 10 Tebu to fully compensate that impact.