Mission Statement
To explore, enjoy, and protect the planet.
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Welcome to the Loma Prieta Chapter of the Sierra Club!
Welcome! The Loma Prieta Chapter is the local face of Sierra Club, serving San Benito, San Mateo, and Santa Clara Counties. The Chapter offers opportunities to become involved and actively contribute time, talents, skills, and funds to the local environmental work of the Sierra Club.
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Local News and Information
Loma Prieta Chapter eNewsletter: October, Volume 2
October 27, 2025
2025 Guardians of Nature recap, Permanente Creek Restoration update, Environmental Stewardship Program 2025-2026 launches, Bay Alive Campaign honors Jeremy Lowe, Bay Alive Campaign in the community, unprecedented forest degradation, the...
The Mediterranean Oak Borer: A Growing Threat to California’s Oak Trees and What You Can Do
October 24, 2025
Although Sudden Oak Death from Phytophthora ramorum infection is currently more prevalent in Northern California, its iconic oak woodlands are facing yet another serious threat: Xyleborus mediterraneus, also known as the...
Environmental Stewardship Program 2025 - 2026 Launches
October 23, 2025
By Gita Dev With the return of in-person sessions, the Environmental Stewardship Program kicked off with great energy and enthusiasm! Thirty-five new participants signed up to join the growing community of graduates from this flagship chapter...