April 2027 | All across California
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Explore 2027 on the map
California Climate Month · April 1 to 30, 2027
Earth Day festivals, beach and river cleanups, wildflower walks, climate summits and garden tours, all in one place. Pick a day, a region or a topic. Anything held in California in April is part of the month.
Dots show events happening that day. Tap a day to see them. Earth Day is circled.
Most organizers have not announced 2027 dates yet. Dates marked Expected are worked out from each event's 2026 edition and its usual timing, such as the Saturday before Earth Day. Always check the organizer's website. Know an April event we missed? Add it.
Statewide · now through 2027
Climate, environmental and sustainability events across the state, every month of the year.
Tap a month to see every event in it.
Months are based on recent editions. Always check the organizer's website before you go. Know an event we missed? Register it.
Open all year · California climate projects
Solar on schools, restored wetlands, kelp forests, food rescue, clean fleets. Share what your organization is building and we will feature it here, on the map of what California is doing about climate.
Application · open year round
Nonprofits, businesses, cities, schools, tribes and community groups are all welcome. It takes about five minutes. We review every application and email you when it is live.
Rotary clubs: you can also add your project to the 4-7-8-17 Project Library through 47817.org.
Spotlight · San Diego and Baja California
The Tijuana River runs about 190 km, mostly through Mexico, and meets the Pacific at the Tijuana River Estuary, one of Southern California's last large coastal wetlands. Sewage and trash have kept beaches in Imperial Beach and south San Diego closed for years at a time. It is California's most urgent border water crisis, and one of the best places to see cross-border climate work in action.
A binational Rotary initiative from 2026 to 2036 that brings together nearly 70 clubs in District 5340 with clubs in Tijuana, Rosarito, Tecate and Ensenada, working alongside WILDCOAST, Surfrider San Diego, San Diego Coastkeeper, SDSU, UCSD and others.
Alluvium is the fertile sediment a river leaves behind. The project turns river plastic into building boards on both sides of the border, starting with education and pilot collection in Baja California with RiverRecycle.
Plastics and the bottle bill
In the 1980s, working with Californians Against Waste, Bill Shireman helped design California's bottle bill, the CRV deposit system that brought business and environmental groups together to recover beverage containers. Today he leads Solution Citizen and advises EarthX.
In 2026 he urged lawmakers to set aside AB 2253, a recycled content claims bill, and let California's packaging law SB 54 do its work. Steve Bender added his support on Loop Way. Governor Newsom vetoed AB 2253 on September 27, 2026. SB 54 regulations took effect May 1, 2026, with full targets by 2032.
Our family of initiatives
Rivers, plastics, pollinators, oceans, youth and civic life. These programs from the Rotary Club of Newport Beach, the United States Green Chamber of Commerce and partners all have roots or work in California.
Tijuana River ProjectA binational Rotary initiative from 2026 to 2036 uniting clubs in California and Baja California around the Tijuana River pollution crisis.tijuanariverproject.orgThe Alluvium ProjectThe Alluvium Project works on both sides of the US and Mexico border to intercept plastic in rivers and turn waste into value through a circular economy.alluviumproject.org
The Plastic ProjectsA living database of plastic pollution solutions: the organizations, technologies, laws and research that are already working.theplasticprojects.org
Loop WayA circular economy directory that connects people in all 50 U.S. states to the organizations that keep reusable materials out of landfills.loopway.org
Pollinators Without BordersA continental hub connecting organizations, communities and Rotary clubs across the Americas to protect monarchs, native bees, hummingbirds and bats.pollinatorswithoutborders.org
Monarchs Without BordersA continental hub connecting organizations, communities, Rotary clubs and educators across Canada, the United States and Mexico to protect monarch butterflies and their migration corridor.monarchswithoutborders.org
7 Seas InitiativeThe 7 Seas Initiative protects oceans and coasts through seven focus areas, from reef restoration to plastic recovery.7seasinitiative.org
Growing Green LeadersA six month youth climate education and innovation challenge for classrooms in the U.S., Canada and Mexico, celebrated on Earth Day.growinggreenleaders.org
Friends of Environment and SustainabilityFree public Zoom meetings twice a month on clean water, reefs, rivers and reforestation, with every session recorded and shared.environmentandsustainability.org
Help in a Box WaterData, filter guides, conservation tips and Rotary water projects that bring safe drinking water to every community.helpinaboxwater.org
100 Projects in 100 CountriesA year-round showcase of environmental and community projects Rotarians lead around the world, now growing into the 4-7-8-17 Global Success Program.100projects100countries.org
4-7-8-17 Global Success ProgramA framework that helps Rotary clubs and partners design projects that are true, fair and built to last, then shares them with the world.47817.org
Democracy In A BoxNonpartisan Rotary programs that help people vote, get involved and disagree respectfully.democracyinabox.us
Rotarians for The American PromiseA nonpartisan Rotary and Rotaract action team for free and fair elections, practicing the respect and civility Rotary is known for.rotariansfortheamericanpromise.org
Building Bridges Through RotaryStarted in 2016 by the Rotary Club of Newport Beach to build bridges, not walls, between the United States and Mexico through shared Rotary projects.buildingbridgesthroughrotary.org
The Mexico ProjectA family of Rotary Club of Newport Beach initiatives working across the U.S. and Mexico border on rivers, pollinators, clean water and ice, and partnerships.themexicoproject.com
Carbon Advisory CoalitionAn independent, plain language library on how carbon credits work, who issues and grades them, and which organizations do the work well.carbonadvisorycoalition.org
Rotary Club of Newport BeachThe Rotary Club of Newport Beach, a Rotary Global Service Club with reef, peace, health and hunger projects alongside partner clubs worldwide.rotaryglobalserviceclub.org
Meals in a BoxMeals in a Box helps Orange County groups collect food for homeless veterans: you gather it, they pick it up.mealsinabox.org
Ayuda InternationalAyuda International brings free dental care to communities in need and helps dentists serve where care is scarce, serving since 1967.ayudaint.orgWhy April, why California
California already fills April with Earth Day fairs, cleanups and climate summits. California Climate Month puts them on one calendar so more people find them and every organizer reaches a bigger audience.
miles of coastline, from the Oregon line to Mexico
counties, and events in every region of the state
events already on the April 2027 calendar
Earth Day falls on a Thursday in 2027, the heart of the month
The weekly · every Monday
One email a week with this week's events, the month ahead and what's happening in nature across the state. It goes daily during California Climate Month in April 2027.
For organizations
Hosting an environmental, climate, energy or sustainability event in California? Registration is open all year, even for something happening next week. We review new listings fast, usually the same day. April events are featured as part of California Climate Month.
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Convened by
California Climate Month is led by Steve Bender, Chairman of the United States Green Chamber of Commerce and Global Partner Ambassador for EarthX. Through his environmental consulting firm, Sea 2 Sky Solutions, he advises organizations on partnerships, events and sustainability strategy.
Steve is Director for Western North America of the Environmental Sustainability Rotary Action Group and President of the Rotary Club of Newport Beach. He has spoken at Davos and at San Diego Climate Week, and he leads "100 Projects in 100 Countries," a global initiative that recognizes climate solutions.
Sister site: Texas Climate Month, also launching April 2027.
Get in touch
Questions, partnerships, sponsorships, media or ideas for California Climate Month. Send a note and we will reply by email.