Local Activists for a Nuclear-Free Future
Legal Intervenors in Diablo Safety Issues since 1973
San Luis Obispo Mothers for Peace is a non-profit organization concerned with the dangers posed by Diablo Canyon and other nuclear reactors, nuclear weapons, and radioactive waste. Additionally, the organization works to promote peace, environmental and social justice, and renewable energy.

Radioactive Waste
Safe storage of high level radioactive waste is the Achilles’ heel of the nuclear industry. The waste must be stored and isolated from the environment for a million years.
After decades of failed policy, there exists no environmentally safe, just, and equitable solution to the storage of high level radioactive waste.
DECOMMISSIONINg or extended operation?
Diablo Canyon nuclear plant was scheduled to retire in 2024 and 2025 through a 2016 joint agreement between its owner, Pacific Gas and Electric Company (PG&E), labor, consumer advocacy and environmental groups. However, over the last year, there has been a push to extend operations beyond these shutdown dates based on Governor Newsom’s claim that its energy is needed.
Climate and Energy
San Luis Obispo Mothers for Peace (MFP) recognizes the threat to all life forms on the planet posed by the increase in carbon dioxide. Human activities, especially since the industrial revolution, have caused this climate change. MFP works in conjunction with like-minded organizations to preserve a livable world for future generations.

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Latest News
April 26, 2025: Join Mothers for Peace at SLO EarthFest
Join us a Meadow Park! 11am – 5pm!
Read More April 26, 2025: Join Mothers for Peace at SLO EarthFest
May 10: A benefit for Mothers for Peace – Collective Creativity, a meditation on peace
Join Mothers for Peace on Saturday, May 10, 10am-noon, for this unique event in Melinda’s Garden: 17100 Walnut Ave, Garden Farms, Atascadero Melinda Forbes and Julie Frankel will lead a collaborative meditation – an artistic expression of our world. We will experience the magic of working together, followed by an individual project honoring one of…
Read More May 10: A benefit for Mothers for Peace – Collective Creativity, a meditation on peace
March 18, 2025: Mothers for Peace demands that PG&E comply with its commitment to test Unit 1 for embrittlement
Diablo Canyon Nuclear Plant Unit 1’s reactor vessel was built with faulty material, so it’s vulnerable to embrittlement. An embrittled reactor vessel can shatter like glass and cause a catastrophic meltdown. Despite this, PG&E has not tested for embrittlement for over 20 years. PG&E has now committed to removing Capsule B from Unit 1 to…