EVENTS

Earth Day Marin 2026

Earth Day Marin

Sunday, April 26, 2026 | 12 – 3pm | Mill Valley Community Center

Join us at Earth Day Marin 2026, our popular environmental celebration on Sunday, April 26, 2026, 12 to 3pm, at the Mill Valley Community Center in Marin County. 
Earth Day Marin 2026 is a free community event for people of all ages, with green booths, fun activities, EVs, art, music, games and talks in a beautiful outdoor setting. We expect this to be Marin’s largest Earth Day event!
Visit over 50 exhibits and activities hosted by green businesses, environmental and community groups to help build a more just and sustainable world. You will learn about clean energy, electric vehicles, green homes, healthy food, resilient communities, climate justice, democracy and more!
Earth Day Marin is produced by Green Change with support from the County of Marin, City of Mill Valley, MCE, Sustainable Marin — and many more climate action leaders. 
SIGN UP NOW!
• Get your free ticket for Earth Day Marin!
• Vendors: Apply to exhibit or sponsor for this event. Deadline is March 7. 
• Volunteers: Sign up here to volunteer before, during or after the event. 
What to expect: To learn more, visit our event page and watch our video trailer.

PAST EVENTS

Did you miss one of our previous events?
Check out our event videos, photos, speaker info and links to learn more and take action!

GREEN CHANGE CALENDAR

Our Green Change Calendar is a limited service that lists occasional climate-related events in Marin and the Bay Area, as well as some virtual events from other locations.

Please note that our calendar will only include a few events in 2026, due to limited resources.

Please email us if you have any questions, or to report an error.

This calendar is curated as a limited service by the Green Change Network team.

CHANGE IS COMING

Photos by Fabrice Florin, Ben Goode, Al Grumet, Lucy London, MCE and more.

Thanks to all our contributors!