California Naturalist
University of California
California Naturalist




The mission of the UC California Naturalist Program is to foster a diverse community of naturalists and promote stewardship of California's natural resources through education and service. 

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Dr. Martin Luther King's actions on behalf of social justice are at the heart of the environmental justice movement. No one possesses the right to degrade and destroy the environment and all members of a society have the right to clean air, water, and soil, as well as access to natural environments. The California Environmental Justice Alliance is working to build democratic, equitable solutions to pollution, poverty and racism. As we turn our focus to service in honor of Dr. King we appreciate all California Naturalists do to protect the environment and sustain human communities.

Posted 2 days ago
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With all the news about this week's ice storms we wanted you to know about Frazil Ice! Take a look at this amazing video with #CalNat instructor Pete Devine Yosemite Conservancy to learn how frazil ice forms and see how beautiful it is. Hope you can make plans to experience this unique natural phenomenon during March and April this year in Yosemite National Park.

Posted 3 days ago
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Posted 4 days ago
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Current News

UCcritterC 2016
In exchange for logging at least 40 service hours in the 2016 calendar year, certified California Naturalists will receive a beautiful 18k gold and enamel pin service pin as our thank you. Log your hours now!

New UC Green Blog: Feeling welcome in nature is essential to caring and wanting to learn more. #CalNat2016 conference summary. 

Hot off the press: “Evaluating environmental education, citizen science, and stewardship through naturalist programs” examines data from California and Virginia naturalist programs to understand participant motivations, barriers, and perspectives as well as the actions they take to advance science, stewardship, and community engagement. 

New California Agriculture article on CalNat Director Adina Merenlender: Building a new mode of extension for biodiversity conservation

Time's Flaming Arrow: Read about journalist Mary Ellen Hannibal's CalNat immersion experience in the HuffPost Green Blog.


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