UC Environmental Stewards is growing and we want to keep you informed. This FAQ page is designed to answer basic questions that UCANR County Directors, academics, staff, or potential partner organizations may have.
The mission of UC Environmental Stewards is to foster a diverse community of stewards building toward sustainability and resilience in California’s communities and ecosystems through education and service.
As a statewide program of the University of California's Division of Agriculture and Natural Resources (UCANR), UC Environmental Stewards offers two adult education certification courses: Climate Stewards and California Naturalist. Both certifications are community college level, interdisciplinary, science-centered courses that combine a minimum of 40 hours of classroom and field learning. Upon certification, participants are eligible for four academic credits through UC Davis Continuing and Professional Education. Read more here.
How did UC Environmental Stewards get started?
UC Environmental Stewards was originally formed as the UC California Naturalist Program. The idea of starting a statewide naturalist program was presented at a UCANR natural resource continuing education conference. UC Extension academics shared feedback that these programs have value, there is likely interest in California, but not enough ANR Natural Resource Advisors or county based capacity to deliver the program out of UC Cooperative Extension county offices. Based on this feedback and guidance from UCANR administrators, a train-the-trainer model was developed and piloted at Santa Rosa Junior College in collaboration with Pepperwood Preserve in 2010/11.
Many people helped get CalNat off the ground in the early days, including UC ANR employees, handbook authors, and Santa Rosa Junior College instructors: Adina Merenlender, Julie Fetherston, Deborah Stanger Edelman, Brook Gamble, Sabrina Drill, Bill Frost, Greg de Nevers, Steve Barnhart, Shawn Brumbaugh, and Rebecca Perlroth. In 2012, early adopter partnering organizations led the eventual expansion of CalNat: Pacific Grove Museum of Natural History, Pepperwood Preserve, UC Santa Cruz Arboretum, UC Sagehen Creek Field Station, and UC Berkeley Jepson Herbarium.
California Naturalist became a UC ANR statewide program in 2014, at which point the California Naturalist Unit was created within UC ANR and the Program Advisory Committee was appointed.
In 2023, the UC California Naturalist Program became UC Environmental Stewards to better encapsulate our mission and the two courses that we offer.
How do I become a California Naturalist or Climate Steward?
To become a certified California Naturalist or Climate Steward, participants need to enroll in a course with one of our partner organizations .
Who can become a California Naturalist and Climate Steward?
The California Naturalist and Climate Stewards courses are open to adults and have no prerequisites, other than an interest in learning about the natural world and the desire to be an environmental steward.
Where and when are California Naturalist and Climate Stewards courses offered?
UC Environmental Stewards collaborates with local partner organizations to deliver the certification courses near you. Scroll down for a list of courses organized by county or explore this map of courses near your area.
UC Environmental Stewards supports a growing community of stewards who can work or volunteer in a wide range of activities that support the stewardship of our natural resources, including education and interpretation, conservation & restoration, participatory science, environmental program support, community resilience, and environmental justice. Naturalists may in turn volunteer with other statewide programs and projects such as 4-H, Project Learning Tree, and Master Gardener programs.
To stay up to date on all the latest developments, sign up for our e-newsletter here.
To request data on the number of courses, instructors, and Environmental Stewards trained in your area, as well as other program performance measures such as volunteer engagement, please contact Greg Ira.
How do I start a new California Naturalist or Climate Stewards course in my area?
If there is no California Naturalist or Climate Stewards course in your area, click here for information on the requirements for potential partnering organizations.
Program Partners by County
This list is organized by county with the name of the course partner underneath and the courses they offer in parenthesis to the right.
Las Positas College (CalNat)
Butte Environmental Council (Climate Stewards)
Chico Creek Nature Center (CalNat)
Calaveras County
Calaveras Big Trees Association (CalNat)
El Dorado County
American River Conservancy (CalNat & Climate Stewards)
Lake Tahoe Community College (CalNat)
Humboldt County
College of the Redwoods (CalNat)
Friends of the Dunes (CalNat)
Inyo County
Eastern Sierra Interpretive Association (CalNat)
Los Angeles County
Anahuakalmekak (Climate Stewards)
Aquarium of the Pacific (Climate Stewards)
Audubon Center at Debs Park (CalNat & Climate Stewards)
Catalina Island Conservancy (CalNat)
Community Nature Connection (CalNat)
Conservation Corps of Long Beach (CalNat)
Dominguez Rancho Adobe Museum (CalNat)
Los Angeles County Arboretum (CalNat)
National Forest Foundation (CalNat)
Nature For All (CalNat)
Pacoima Beautiful (CalNat)
Pasadena City College (CalNat & Climate Stewards)
USC Sea Grant (CalNat & Climate Stewards)
Madera County
Nature Up Close (CalNat)
Marin County
All Hands Ecology (CalNat)
Point Reyes National Seashore Association (CalNat & Climate Stewards)
Strategic Energy Innovations (Climate Stewards)
Mariposa County
UC Merced Yosemite Research Station (CalNat)
Mendocino County
UC Hopland Research & Extension Center (CalNat & Climate Stewards)
Merced County
Four River Natural History Association (CalNat & Climate Stewards)
UC Merced Vernal Pools & Grassland Reserve (CalNat & Climate Stewards)
Monterey County
Pacific Grove Museum of Natural History (CalNat & Climate Stewards)
Nevada County
Sierra Streams Institute (CalNat)
UC Sagehen Creek Field Station (CalNat)
Orange County
Bolsa Chica Conservancy (CalNat)
El Modena High School(CalNat)
Riverside County
Council of Mexican Federations in North America (COFEM) (CalNat)
Norco College (CalNat)
Riverside-Corona Resource Conservation District (CalNat & Climate Stewards)
UC Riverside Palm Desert Center (CalNat & Climate Stewards)
Sacramento County
American River College (CalNat)
Cosumnes River Preserve (CalNat & Climate Stewards)
Effie Yeaw Nature Center(CalNat & Climate Stewards)
Sacramento Tree Foundation (CalNat)
San Bernardino County
Southern California Mountains Foundation (CalNat)
San Diego County
Anza-Borrego Foundation (CalNat)
Grossmont College(CalNat)
Palomar College(CalNat)
Preserve Calavera(CalNat)
San Luis Obispo County
Cuesta College (CalNat)
Nature Up Close (CalNat)
San Mateo County
Midpeninsula Regional Open Space District (CalNat)
Santa Barbara County
Community Environmental Council (Climate Stewards)
Santa Clara County
Grassroots Ecology (CalNat)
San Jose Conservation Corps (CalNat)
Santa Clara County Parks (CalNat & Climate Stewards)
West Valley College (CalNat)
Santa Cruz County
UC Santa Cruz Arboretum (CalNat)
Solano County
Solano Community College (CalNat)
Sonoma County
All Hands Ecology (CalNat)
Pepperwood Preserve (CalNat & Climate Stewards)
Sonoma Ecology Center (CalNat)
Stewards of the Coast and Redwoods (CalNat & Climate Stewards)
Tuolumne County
Columbia College (CalNat & Climate Stewards)
Ventura County
Wishtoyo (CalNat)
Yolo County
Tuleyome (CalNat)
UC Davis: Wild Davis (CalNat)
Contact the UC Environmental Stewards Team
Have a question for someone from the UC Environmental Stewards team? Click here to meet the team and learn their roles in the program.