California Naturalist

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an image with various photos of UC Environmental Stewards community members says 63 new instructors trained, 101 courses held training 1,760 people, 1 regional rendezvous with 121 attendees, a new logo and an updated handbook

Support UC Environmental Stewards

December 19, 2025
By Gregory C Ira
 Dear Community,Connecting with like-minded people is one of the top reasons individuals join a California Naturalist or Climate Stewards course. Your support of UC Environmental Stewards powers a small but mighty team anchoring one of the largest collective impact networks of its kind. Just five…
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Hurricane Milton- clouds in a circular pattern cover the image

Unnatural Disasters

October 11, 2024
By Sarah-Mae Nelson
Content Warning: This article discusses Hurricane Helene, Hurricane Milton, Hurricane Harvey, and other climate change-related issues and impacts that might be hard to read for some.
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A group of California Naturalist collect data in a forest

Why Become a Certified California Naturalist?

June 28, 2024
By Gregory C Ira
I recently came across a national forum thread on iNaturalist where someone was curious to know more about the value of becoming a certified naturalist. Not surprisingly, there was a wide range of opinions. These ranged from supportive to skeptical to cynical.
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Joshua Trees at the Hub of an Ecosystem

June 6, 2022
A blog re-post from our Lead Scientist Dr. Cameron Barrows on the importance of preserving those organisms that are at the core of each ecosystem, using Joshua Trees (Yucca brevifolia) as an example.
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New Volunteer Portal Rollout!

February 14, 2022
By Eliot T Freutel
Dear California Naturalists and Climate Stewards: We are pleased to introduce you to the new Volunteer Portal! Over the last year, we've developed a new platform for our naturalists, stewards, and instructors to record, review, and generate reports on their volunteer service.
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