Earth Systems Science

UC Merced’s Berhe Joins Scientists in Warning of Global Land Mine Crisis

July 24, 2025

A sign posted on a tree in Eastern Europe warns of active land mines.

More than 100 million land mines remain buried around the world, posing a threat in approximately 70 countries and territories, and killing or injuring about 5,000 people, most of them civilians, every year. As the world’s geopolitical landscape shifts, nine scientists studying...

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...

Community Members Aid Cutting-Edge Research in ‘BioBlitz’ Project

When scientists at UC Merced seek to better understand California’s biodiversity, they turn to cutting-edge genomics. They also turn to their neighbors. On a sunny Saturday in April, scientists...

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...

Study: Dust Helps Regulate Sierra Nevada Ecosystems

“Collecting dust” isn’t usually considered a good thing. But dust from as near as the Central Valley and as far away as the Gobi Desert in Asia provides more nutrients — especially critical...

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...

Study: Warming Could Slow Upslope Migration of Trees

By Dan Krotz, Lawrence Berkeley National Laboratory Scientists expect subalpine trees to advance upslope as global temperatures increase, following their climate up the mountains. But new research...

Picking Over the Past Provides Clues to the Future

UC Merced professors Jessica Blois and Justin Yeakel and their graduate students are sifting through time, picking out tiny clues that will give them a mouse’s eye view of the ecosystem that...

The Real Horror of ‘Frankenstein:’ Human Extinction

If fictional scientist Victor Frankenstein had created a mate for his nameless Creature, humans would have gone extinct in about 4,000 years, according to a new study co-authored by a UC Merced ...