Environmental Research

Climate change and wildfire make a combustible mix with deadly and costly consequences.

Scientists have been trying to understand that link for many years, studying the effects of climate and wildfire interactions in the Sierra Nevada.

UC Merced Professor LeRoy Westerling and University of New Mexico Professor Matthew Hurteau and colleagues have analyzed data via simulations of Sierra wildfires, and what they found was surprising.

A $4.6 million grant to UCs Merced and Irvine will help researchers develop new tools and methods for better managing the state’s forests, shrub lands and grasslands.

UC Merced researchers have evidence that California’s forests are especially vulnerable to multi-year droughts because their health depends on water stored several feet below ground.

The Earth is changing, and humans face major challenges if they hope to adapt, survive and preserve any semblance of the world as it is now.

Humans will need to create sustainable food, water and energy supplies; curb climate change; eliminate pollution and waste; and design efficient, healthy and resilient cities. To support these efforts, they will also need to enhance society’s ability and will to make informed decisions and act; and develop leaders who are prepared to address a sustainable future.

Forty million years after dinosaurs went extinct, one of the largest predators that ever prowled Earth’s oceans emerged, feeding the imaginations of modern scientists and the nightmares of modern movie audiences.

Megalodon — the name means ‘giant tooth’ — appeared some 23 million years ago and reigned the seas for about 21 million years. In 400 million years of shark evolution, megalodon is the most massive shark species that ever lived, growing to 60 feet long, or three times the size of the largest of today’s great whites.

Civil and environmental engineering Professor Erin Hestir’s proposal for a unique system of mapping mercury in the waters of the San Francisco Delta has won her and her team of collaborators a $1.7 million grant from the California Department of Fish and Wildlife (CDFW).

California aims to lead the nation — and the globe — in climate change research, policy and action — in large part through climate-focused research conducted at University of California campuses and labs.

Some of that research, including from UC Merced, will be on display this week as climate-change scientists, policymakers and trailblazers from around the globe gather in San Francisco for the 2018 Global Climate Action Summit .

Soils are carbon sinks, storing more planet-warming carbon than the atmosphere and all animal and plant life combined.

But they can also release massive amounts of stored carbon into the atmosphere. Given carbon’s central role in climate change, understanding the forces that govern how soils absorb and release carbon is crucial.

In 2012, Environmental Systems graduate student Lauren Schiebelhut was collecting DNA from ochre sea stars living along the Northern California coast — part of an effort to study genetic diversity in various marine species that serve as indicators of habitat health. She had no idea that just one year later, most of the sea stars would be dead.

The National Academies of Sciences, Engineering and Medicine (NASEM) just announced that they’ve selected Professor Asmeret Asefaw Berhe to serve as an inaugural member of the Academies’ newest initiative — New Voices in Sciences, Engineering and Medicine (SEM).