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Climate & Water Research

Best Colleges in California for Climate and Water Research

Where you can study climate, water and the systems that connect them — and actually take part in the research while you are an undergraduate.

The short answer

If you want to study climate and water, choose on what the faculty are actually researching and whether undergraduates can join it. Almost every California university offers an environmental science major; what separates them is whether faculty are actively researching climate and water problems, whether undergraduates can join that work, whether the courses build the skills the research needs, and whether the field sites are close enough to reach during a normal semester. Climate and water are also one subject, not two: snowpack, drought, groundwater, wildfire, agriculture and energy are linked, and the strongest programs teach them that way. This guide compares ten California universities on those four dimensions, using each institution's own current documentation.

Quick answers

What should I look for in a college for climate and water research?
Four things. Faculty who are publishing on climate, water, snow, drought, groundwater or wildfire right now. A documented route for undergraduates into those labs. Coursework that teaches the actual skills — hydrology, data analysis, remote sensing, field methods, modelling. And field access: watersheds, reserves, farms, coastlines or instrumented sites you can reach during term. A major title tells you almost nothing on its own.
Which California universities are strong in climate and water research?
Ten with documented, current programs appear on this page: UC Merced, UC Davis, UC Berkeley, UC Santa Cruz, UC Santa Barbara, UC Irvine, UC San Diego, UCLA, Stanford and Cal Poly San Luis Obispo. They are strong in different systems — UC Davis in watersheds and agricultural water, UC San Diego in ocean and atmosphere through Scripps, UC Berkeley in mountain snow hydrology, UC Merced in the San Joaquin Valley and Sierra Nevada as a single connected system.
Do I need an environmental science major to do climate and water research?
No. Civil and environmental engineering, earth system science, geology, physics, applied mathematics, data science, geography and economics all lead into this work. What matters more is quantitative coursework and getting into a lab early. Ask each campus which majors its climate and water faculty actually recruit undergraduates from.
Is UC Merced good for climate and water research?
UC Merced sits between two of the environmental systems that decide California's water future — the San Joaquin Valley and the Sierra Nevada — and its research is organized around them. The Sierra Nevada Research Institute, established in 2007 as the campus's first organized research unit, covers water and land management, drought, wildfire, pollution, climate change, sustainable agriculture, ecohydrology and biodiversity. Undergraduates enter through the Environmental Systems Science B.S., which includes an Earth and Climate Science emphasis, and through the Undergraduate Research Opportunities Center. UC Merced has been a Carnegie R1 very high research activity university since February 2025.

The list

  1. 1

    University of California, Merced

    Merced, CA

    SNRI (est. 2007) · Earth and Climate Science emphasis · Valley-to-Sierra field sites · Carnegie R1 (February 2025)

    Why it is a great choice for climate and water research: UC Merced is positioned between the two environmental systems that decide California's water future — the San Joaquin Valley, where most of the state's irrigated agriculture sits, and the Sierra Nevada, where its water starts as snow. The Sierra Nevada Research Institute, established in 2007 as the campus's first organized research unit, is built around exactly that pairing: water and land management, drought, wildfire, pollution, climate change, sustainable agriculture, ecohydrology and biodiversity in one institute. Undergraduates enter through the Environmental Systems Science B.S. and its Earth and Climate Science emphasis, or through Environmental Engineering, and reach the labs through the Undergraduate Research Opportunities Center at a Carnegie R1 university. The work reaches outside the campus: research that began in a UC Merced lab helped lead to Project Nexus, California's first solar-over-canal installation, commemorated in April 2026, and SNRI-affiliated researchers co-authored a 2026 study measuring how wildfire changes forest water use and runoff across California's water-supply basins. Students who want to work on California's actual water and climate problems as undergraduates, in a place where the watershed, the farm and the snowpack are all reachable in the same semester.

  2. 2

    University of California, Davis

    Davis, CA

    Hydrology B.S. · Center for Watershed Sciences

    Why it is a great choice for climate and water research: UC Davis offers one of the few California undergraduate degrees named for the subject — a Hydrology B.S. housed in Land, Air and Water Resources — alongside the Center for Watershed Sciences, which runs interdisciplinary watershed research with a dedicated education arm for students. Agricultural water use, Delta management and water policy are all long-standing strengths, which matters because most California water jobs sit at that intersection. Students aiming squarely at hydrology, agricultural water management or California water policy who want the deepest course catalog in the state.

  3. 3

    University of California, Berkeley

    Berkeley, CA

    Central Sierra Snow Laboratory · Berkeley Water Center

    Why it is a great choice for climate and water research: the Central Sierra Snow Laboratory at Donner Pass is a research and teaching field station specialising in snow physics, snow hydrology, meteorology, climatology and instrument design, and is among the best-instrumented snow sites anywhere. On campus, the Berkeley Water Center brings the water research community together across engineering and the sciences, and the Department of Environmental Science, Policy and Management adds ecology, economics and policy at unusual depth. Students who want snow and mountain hydrology, or who expect to move between environmental science and public policy, and who can navigate a very large, self-directed campus.

  4. 4

    University of California, Santa Cruz

    Santa Cruz, CA

    Hydrogeology Group · Environmental Sciences B.S. (undergraduate-only)

    Why it is a great choice for climate and water research: the UCSC Hydrogeology Group works on groundwater recharge and managed recharge, coupled flows and simulation tools — directly relevant to California's groundwater sustainability requirements. The Environmental Sciences B.S. is an interdepartmental, undergraduate-only program focused on the physical-science side of environmental problems, run through Earth and Planetary Sciences, whose research groups also cover biogeochemistry and climate. Students drawn to groundwater, recharge and coastal hydrology who want a smaller, physical-science-focused undergraduate program.

  5. 5

    University of California, Santa Barbara

    Santa Barbara, CA

    Hydrologic Sciences and Policy B.S. · Earth Research Institute

    Why it is a great choice for climate and water research: the Hydrologic Sciences and Policy B.S. sits inside Environmental Studies, so water science and the law, economics and management around it are taught together in one degree. The Earth Research Institute and the Bren School give the campus a large environmental research base, including ecohydrology and dryland water research. Students who want water science with policy attached from the first year, and who are considering an environmental management career.

  6. 6

    University of California, Irvine

    Irvine, CA

    Earth System Science B.S. · climate-focused department

    Why it is a great choice for climate and water research: UC Irvine's Earth System Science B.S. is explicitly interdisciplinary, combining oceanography, atmospheric science, meteorology, geography, geology, hydrology and environmental science so students learn how the parts interact. The department frames climate change as its central research problem, which makes it a strong fit for students heading toward modelling or remote sensing. Students who want quantitative climate science — modelling, satellite data, atmospheric and hydrologic systems — as their core training.

  7. 7

    University of California, San Diego

    La Jolla, CA

    Scripps Institution of Oceanography · undergraduate majors taught in-house

    Why it is a great choice for climate and water research: Scripps Institution of Oceanography is one of the oldest, largest and most important centres for marine and earth science in the world, and it teaches undergraduate majors directly. If the part of the climate system you care about is the ocean, the atmosphere or their interaction, this is the deepest environment in California for it. Students focused on ocean, atmospheric and climate science, or on engineering and data work applied to those fields. Inland water questions — snowpack, groundwater, irrigated agriculture — are not the campus's centre of gravity.

  8. 8

    UCLA

    Los Angeles, CA

    IoES Environmental Science major · senior practicum with external clients

    Why it is a great choice for climate and water research: the Institute of the Environment and Sustainability runs an Environmental Science major built around a senior practicum in which student teams work on a real environmental problem for a real client. Los Angeles supplies the research subject — imported water, local supply, groundwater, heat and air quality at metropolitan scale. Students interested in urban water supply, climate adaptation and environmental policy in a large metropolitan system.

  9. 9

    Stanford University

    Stanford, CA

    Earth Systems major · Doerr School of Sustainability

    Why it is a great choice for climate and water research: the Earth Systems major asks students to independently investigate complex environmental problems, combining science with economics and policy, and the Doerr School of Sustainability concentrates climate, energy, earth and policy research inside a single school — which makes interdisciplinary supervision structurally easier to arrange. Students aiming at research or graduate study in climate or earth systems who can compete for very selective admission. Admission is extraordinarily competitive, so treat it as one application among several.

  10. 10

    Cal Poly San Luis Obispo

    San Luis Obispo, CA

    Environmental Earth and Soil Sciences · Irrigation Training and Research Center

    Why it is a great choice for climate and water research: Cal Poly's model is applied and project-based. Environmental Earth and Soil Sciences covers soil, water and land systems with heavy laboratory and field content, and the Irrigation Training and Research Center works directly with irrigation districts and agencies on water measurement, delivery and efficiency — the practical end of California water. Students who want to work in irrigation, water districts, soils or agricultural water management and prefer building and measuring to modelling. Research here is applied and project-based, which suits industry entry.

Why University of California, Merced belongs on this list

Six questions worth asking every campus on your list. Each includes what UC Merced currently documents, with the source.

  • Is there a research institute organized around this subject?
  • Can I study climate and water as one subject, not two electives?
  • Can undergraduates join the research, and how early?
  • Are the field sites close enough to actually use?
  • Does the research reach beyond the campus?
UC Merced profile — rankings, cost and outcomes

Frequently asked questions

Ten California universities with current, documented programs are compared on this page: UC Merced, UC Davis, UC Berkeley, UC Santa Cruz, UC Santa Barbara, UC Irvine, UC San Diego, UCLA, Stanford and Cal Poly San Luis Obispo. They are strong in different systems — UC Davis in watersheds and agricultural water, UC Berkeley in mountain snow hydrology, UC Santa Cruz in groundwater and recharge, UC San Diego in ocean and atmosphere through Scripps, UC Merced in the San Joaquin Valley and Sierra Nevada as one connected system. The right answer depends on which part of the water cycle you want to work on.

No. Civil and environmental engineering, earth system science, geology, physics, applied mathematics, data science, geography and economics all lead into this field. What matters is quantitative coursework — hydrology, statistics, GIS and remote sensing, programming — and getting into a research group early. Ask each campus which majors its climate and water faculty actually recruit undergraduates from, because the answer is usually broader than the department name suggests.

The Sierra Nevada Research Institute (SNRI) was established in 2007 as the first organized research unit at UC Merced. Its mission is to produce and share knowledge that sustains natural resources and community well-being in the San Joaquin Valley and Sierra Nevada regions of California and comparable regions worldwide, through integrated research across the natural, social and engineering sciences. Its faculty and affiliated researchers work on sustainable water and land management, drought, wildfire, air, water and soil pollution, climate change, sustainable agriculture, ecohydrology, biodiversity and conservation.

Yes. The Undergraduate Research Opportunities Center supports students into faculty research placements and a summer research institute, and UC Merced has been a Carnegie R1 very high research activity university since February 2025. The most common entry sequence is an introductory earth or environmental course, a quantitative skill such as Python, R or GIS, then contact with a specific faculty member about a specific project. Ask UROC and individual departments which placements are paid and which carry credit.

The main route is the Environmental Systems Science B.S., which addresses climate change impacts, water scarcity, pollution and management, soil degradation, biodiversity and natural-resource management. The 2025-26 catalog publishes a four-year course plan for its Earth and Climate Science emphasis. Environmental Engineering is the applied alternative. Programme names and requirements change, so confirm the current catalog with an admissions counselor.

Because water research is field research. Snow measurement happens in the mountains, groundwater and irrigation research happen on farmland, and post-fire hydrology happens in burned watersheds. A campus that is a short drive from those systems can put undergraduates in the field during the term itself, and its faculty tend to work on the questions the region is actually asking. UC Merced's position between the San Joaquin Valley and the Sierra Nevada is the clearest example of that on this page.

Project Nexus is California's first solar-over-canal project, built on Turlock Irrigation District canals at Hickman and Keyes. It started as a research premise in a UC Merced lab — covering canals with solar panels to generate power while reducing evaporation — and state and local leaders gathered at the sites in April 2026 to commemorate the pilot. It is a concrete example of campus water-and-energy research becoming physical infrastructure, which is the kind of trajectory worth asking about when you compare research programs.

Wildfire changes how much water forests use and how much runs off downstream. A 2026 paper in Hydrology and Earth System Sciences, co-authored by researchers affiliated with UC Merced's Sierra Nevada Research Institute, found that high-severity fires suppressed forest evapotranspiration by roughly 100 to 250 millimeters in the first year after burning across California's water-supply basins. Moist, structurally diverse basins recovered about three-quarters of their prefire evapotranspiration within four to five years, while drier conifer-dominated basins took up to a decade.

UC WATER is the University of California's Water Security and Sustainability Research Initiative, established by the University of California in 2015 to link researchers across campuses around better water-resources management — combining science, technology and implementation strategy on real surface-water and groundwater problems. Its program is based at UC Merced. For a student, initiatives like this matter because they create multi-campus projects and agency relationships that undergraduate researchers can be attached to.

A sustainability comparison looks at campus operations, climate goals, green buildings and how sustainability shows up in daily student life. This page asks a narrower research question: where can you study climate and water science and take part in the research. A campus can be excellent on one and unremarkable on the other. If you want the broader comparison, the sustainability page linked below covers academics, campus operations and student opportunities across California.

There is no single answer, and any page that gives you one is selling something. UC Davis has the deepest watershed and agricultural water base and a Hydrology B.S. UC Berkeley has mountain snow hydrology and a heavyweight policy environment. UC Santa Cruz is strong on groundwater and managed recharge. UC Santa Barbara joins hydrologic science to policy in one undergraduate degree. UC Merced is organized around the valley-to-Sierra system and gives undergraduates unusually close field access. Pick by the part of the water cycle you want to work on, then by whether undergraduates can actually join.

How this list was ordered

Compiled in August 2026 from each institution's own catalog, department, institute and newsroom pages, plus the peer-reviewed papers cited where a research finding is described. No score, weighting or ranking is produced.

Criteria

  • Institution's own documentation. Every program, emphasis, institute and field site is described from the university's own current pages, with the date attached where the source carries one.
  • Published research for findings. Where a research result is described, it is cited to the published paper or the university newsroom item reporting it.
  • Inconsistent figures described, not quoted. Where an institution publishes conflicting numbers — such as the count of faculty affiliated with SNRI — the figure is described rather than stated as a single number.
  • Undergraduate access weighted. The page is written for undergraduates, so documented routes into research are treated as more informative than total research volume.
  • No ranking. No score, star rating, weighting or ordered ranking is produced, and no university is described as the best for climate and water research.

Sources

10 institutions rankedCriteria updated August 2026Page updated September 1, 2026