San Francisco International Airport

San Francisco International Airport (SFO), a department of the City and County of San Francisco, is a transparent organization dedicated to serving our local community as well as the millions of travelers who pass through our doors each year. We welcome public interest in the way we do business.

BioScore

BioScore: 2,630.87 — ranked in the top 81.2% of all Nature Realms globally on GuardiansofEarth.io. The BioScore measures biocultural health by combining species diversity, data quality, monitoring activity, community engagement, and evidence of ecological restoration.

Recorded Species (115 total)

  • 1 species — Extinct in the Wild (EW)
  • 2 species — Critically Endangered (CR)
  • 2 species — Endangered (EN)
  • 3 species — Vulnerable (VU)
  • 1 species — Near Threatened (NT)
  • 106 species — Least Concern (LC)

Species are classified using IUCN Red List categories: EW (Extinct in the Wild), CR (Critically Endangered), EN (Endangered), VU (Vulnerable), NT (Near Threatened), LC (Least Concern).

Guardian Community

106 Guardians are actively stewarding this Nature Realm. Guardians contribute species observations, local knowledge, and stories to improve the BioScore and earn BioCultural Units (BCUs).

BioCultural Units (BCUs)

2.6 BCUs available to harvest in this Realm (2.6 BCUs in total treasury). BCUs are GoE's nature credit — earned by raising the BioScore through verified contributions to biodiversity, cultural knowledge, and place-based stewardship.

Stories & Cultural Knowledge

0 stories recorded about this Realm (stories score: 0, top 0.00% globally). Stories capture place-based ecological and cultural knowledge held by the local community.

About GuardiansofEarth.io

GuardiansofEarth.io (GoE) is a technology platform that makes caring for nature economically rewarding. Nature Realms are digital layers tied to real geographic places. Each Realm has a BioScore, a community of Guardians, and a treasury of BioCultural Units (BCUs) — GoE's nature credit with a global supply cap of 1,000,000 units.

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