Life and Environmental Sciences

When Professor Asmeret Asefaw Berhe arrived at UC Merced in 2009, she and her husband, Professor Teamrat Ghezzehei, were leaving major research institutions to join a brand-new campus in California’s Central Valley. It was a leap of faith — one made easier by the Sierra Nevada Research Institute.

As nations cut emissions that once fueled urban smog, scientists are discovering unexpected chemistry taking place in the atmosphere.

UC Merced Professor Xuan Zhang is leading a project to uncover how these chemical shifts could affect the air we breathe and the climate. The project is supported by a National Science Foundation CAREER Award.

Zhang is the 43rd researcher from UC Merced to earn a CAREER award from the NSF.

As the Hellman Fellowships celebrate their 30th year, three more researchers, one from each of UC Merced’s schools, have joined the prestigious ranks of recipients.

Electrical engineering Professor Qian Wang, sociology Professor Meredith Van Natta and Earth systems Professor Adeyemi Adebiyi will receive funding through their fellowships for projects they have proposed.

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 different aspects of warfare ecology from seven countries — Poland, Ukraine, Norway, Spain, the United States, Finland and Croatia — are warning against the growing deployment of land mines as countries bordering Russia withdraw from global conventions restricting their use.

Shark Week starts Sunday and Professor Sora Kim will be featured again this year in a special airing at 9 p.m. Monday, titled “Jaws vs. Mega Croc,” and the filming allowed her to swim with a Nile crocodile.

“I flew to Florida and learned about crocodiles – their evolution, strength, physiology and behavior. More interactions are being recorded between sharks and crocodiles these days, so I also needed to learn about these situations,” she said.

With careful planning and a little luck, researchers found a surprising upside to hurricanes after a Category 4 storm disrupted their expedition off the coast of Mexico.

The team was able to sample the ocean right after the storm passed and found that the storms churn the ocean so powerfully and deeply — up to thousands of meters — that nutrient-rich, cold water is brought to the surface.

Two UC Merced graduate students and an alum from the School of Natural Sciences were recently awarded fellowships from the highly competitive National Science Foundation Graduate Research Fellowship Program.

This year, NSF awarded 1,000 GRFP fellowships compared to about 2,000 in previous years.

An average of more than 1 million acres of idled farmland a year is a significant contributor to a growing dust problem in California that has implications for millions of residents’ health and the state’s climate.

People don't think about dust much until it's time to clean the house, but a new report by UC researchers could raise awareness of the growing threat of dust and dust storms.

Dust affects everything from cardiovascular and brain health to traffic collisions and agricultural yield. “Beyond the Haze: A UC Dust Report on the Causes, Impacts, and Future of Dust Storms in California” details the wide-ranging impacts of dust on health, public safety, the environment and California's economy.

Professor Emily Jane McTavish and colleagues at the Cornell Lab of Ornithology have mapped the evolution of every known bird species.

They created a complete evolutionary tree of bird species by combining data on 9,239 species published in nearly 300 studies between 1990 and 2024 and additional curated data on another 1,000 species. The resulting database can easily be shared and updated as additional studies are published.