Sierra Nevada Research Institute

UC Merced Climate Experts Explain Why March Heat Wave is Dangerous

March 17, 2026

Depicted is the sun in an orange sky framed by palm leaves.

Temperatures in the 90s are nothing new to the northern San Joaquin Valley. But having them in March, as expected this week, is unusual and potentially dangerous. An exceptionally strong ridge of high pressure will bring record-breaking heat to the entire region, the National Weather Service...

World’s Oldest Trees Shape the Diversity of Life in Their Soils, Study Shows

There’s a whole world of activity beneath your feet. Soil holds a large proportion of Earth's biodiversity, and is the place where organisms interact with each other and with plants,...

SNRI Sees a Leadership Transition

Change is everywhere at UC Merced this year, from hiring a new chancellor to the completion of a major campus expansion. The Sierra Nevada Research Institute (SNRI), an early hallmark of research...

New Tools Indicate How Thinning and Fire Affect Forest Water Use and Boost Runoff

Forest-management actions such as mechanical thinning and prescribed burns don’t just reduce the risk of severe wildfire and promote forest health — these practices can also contribute to...

Podcast Focuses on New Agriculture and California’s Future

On a hot June evening, UC Merced Professor Josh Viers joined farm advocate and small farmer Tom Willey on his front porch near Fresno to talk about California’s water, disadvantaged...

Human Waste Treatment Helps Solve Climate-Change Puzzle, New Study Shows

About 4.5 billion people around the globe do not have access to adequate sanitation, and what they do have — typically pit latrines and lagoons — are responsible for widespread illnesses...

‘Research Week’ Celebrates UC Merced Innovation

UC Merced celebrates Research Week from March 2-6 to highlight the ground-breaking work taking place at the University of California’s newest campus. The annual week of events, sponsored by...

In Yosemite, prescribed burning saved the Tuolumne giant sequoia grove from the Rim Fire, the largest-ever Sierra Nevada wildfire.

Wildfire and Water Challenge Solutions Featured in Documentary to Air on KVIE

UC Merced researchers outline solutions to the severe wildfire problems in California’s mountain forests and closely linked water resource challenges in a documentary premiering on KVIE, the...

Water Yield from Forest Thinning Depends on How, Where and How Much

Even a little forest management significantly increases water runoff in the Central Sierra Nevada and other semi-arid regions, while drier forests need more extensive treatments, according to a new...

Stands of brown, dead trees throughout Sierra Nevada forests

Multiyear Drought Caused Massive Forest Die-off in Sierra Nevada

The most extreme drought event in hundreds of years caused a catastrophic die-off of the Sierra Nevada’s mature trees in 2015-2016. A study published today in Nature Geoscience details how...