Climate Change

Researchers Look Ahead to Fire Season 2025

April 22, 2025

Flames, the beach and the ocean are depicted in a scene from the January 2025 Palisades fire.

Pictures accompanying Professor John Abatzoglou's presentation on the 2025 fire season were blurry. That was intentional, he said, because so much about wildfire is unpredictable. "There's a lot that we know, and a lot we don't know," he said. However, Abatzoglou said,...

A bird's-eye view of browning forest due to the effects of drought.

Scientists Explain Mechanisms Affecting Runoff Levels During Drought

Scientists at UC Merced’s Sierra Nevada Research Institute (SNRI), UC Irvine, UC Davis and the USDA Forest Service have enumerated the mechanisms that serve as master regulators of streamflow...

Study: Climate Change, Drought Threaten Giant Sequoias

A new study published online in the Journal of Geophysical Research: Biogeosciences finds that the giant sequoia, a fixture of California’s Sierra Nevada forests for the past 2.6 million years...

‘Energize Colleges’ Sustainability Internships Available

UC Merced’s sustainability office is seeking undergraduate students who are thinking about careers in energy to fill this fall’s Energize Colleges internships. UC Merced is one of...

Two men pose with an oversized check on stage at a check presentation ceremony for the PG&E award to SNRI.

PG&E Funds Critical SNRI Work on Sierra Forest Resiliency

A team of UC Merced researchers was recently awarded $100,000 from Pacific Gas and Electric Company (PG&E) to identify ways to improve drought resilience and reduce the risk of wildfire in Sierra...

Study: Critical Sierra Meadows Being Overtaken by Forest

Subalpine meadows are among the Sierra Nevada’s most enchantingly picturesque landscapes. These sparsely wooded, grassy expanses are home to plants and animals found nowhere else, and they play an...

Study: Wildfires, Climate Change Could Make Sierra a Polluter

What if nature were to become a polluter, discharging millions of tons of planet-warming carbon into the atmosphere in much the same way as diesel-fueled trucks or coal-fired power plants? This...

‘Water in the Balance’ Highlights UC Merced Research

Water is a delicate balancing act in California. When the scales tip in the wrong direction, the consequences can have national effects. Nobody knows this better than UC Water Co-Director Joshua...

Research Shows Global Photosynthesis on the Rise

Plant photosynthesis was stable for hundreds of years before the industrial revolution, but grew rapidly in the 20th century, according to new research published today in Nature. “Virtually all life...

Paleorecord Critical to Future Conservation Efforts, Scientists Say

The rapid pace of global change has large impacts on nature, and on the work conservation biologists will have before them, too. From here on out, experts say, the fossil record is going to be...