A Letter from the Dean

November 18, 2025

California is a land of contrasts. Our cities, which occupy only 5% of the state’s land, hold 90% of our population. The other 95% of the state is composed of suburban and rural communities, tribal lands, agricultural lands, rangelands, forests, mountains, and deserts. This is where many of our faculty, students, and researchers pursue their work.

A photo of a man, David Ackerly, in a blue suit smiling at the camera.

David Ackerly. Photo by Mathew Burciaga.

That’s why this issue of Breakthroughs looks inland to California’s rural and agricultural areas and their people, ecosystems, and biodiversity. We spotlight faculty members assessing and improving the health and well-being of residents in agricultural areas like the Central Valley, where nearly a quarter of the food consumed in the US is grown, and also feature various projects aimed at increasing understanding of and access to California’s precious water resources.

One story highlights Berkeley faculty restoring beneficial fire to the state’s forestlands. Recognizing that fire is inevitable in many of California’s landscapes, they are prioritizing areas and forest management techniques that will have the most impact for preventing devastating wildfires.

We also turn attention to California’s iconic rangelands, which occupy a vast amount of the state’s land area. These working landscapes are essential for California’s cattle and sheep production, and livestock grazing there not only reduces wildfire fuels but also ensures these vital open spaces continue to provide habitat for wildlife, store carbon, and supply clean water.

Through in-depth interviews, longstanding working relationships, and co-designed research programs, our researchers are coordinating closely with residents of the areas they study. In addition to bringing results and recommendations back to those communities, they are also communicating findings to policymakers.

I hope these pages will leave you newly informed about our unique state and its challenges, and invigorated by the impact Rausser College is having for the benefit of California’s people, landscapes, and ecosystems.


Breakthroughs magazine is published twice per year by Rausser College of Natural Resources at the University of California, Berkeley.

Masthead

Dean

David D. Ackerly

Editor

Julie Gipple

Associate Editor

Mathew Burciaga

Creative Director

Arnaud Ghelfi

Copy Editor

Laura Deck

Contributing Writers

Mathew Burciaga
Andrew Chapman
Julie Gipple
Michael Hsu
Kara Manke
Kristin Baird Rattini
Suzanne Spencer
Tomas Weber

Contributing Photographer

Mathew Burciaga

Contributing Illustrators

Paige Jung
Jack Tite

Design & Production

l’atelier starno, www.starno.com

© 2025 by the Regents of the University of California. All rights reserved. Breakthroughs is a registered trademark.

Contact us at breakthroughs@berkeley.edu

A cover of the Fall 2025 issue of Breakthroughs magazine.

Cover Illustration by Jack Tite