Ecology & environment

Hummingbird on a branch

Tiny birds, tiny tech

A new tracking method gives a round-the-clock record of hummingbird life.

Las Varas Ranch

UC Santa Barbara's new coastal jewel

Philanthropist Charles T. Munger makes a gift of the 1800-acre Las Varas Ranch.

Child on parent's shoulder in front of personal care products

Prenatal exposure to chemicals in personal care products may speed puberty in girls

Early onset puberty has been linked with an increased risk of mental illness and cancer.

View from Berkeley Lab on a clear day versus a polluted one

Q&A: How to protect yourself from wildfire smoke

Berkeley Lab indoor air experts share their tips on dealing with air pollution.

Three veterinary professionals work on an injured goat

All hands on deck at UC Davis for the Camp Fire

Fire and veterinary teams spent the Veterans Day weekend hard at work fighting the Camp Fire.

Vietnam devastation kids in the rubble

The Vietnam War from another angle

An environmental historian highlights the role landscapes play in military conflicts.

Southern Ocean storm

Oceans have absorbed 60 percent more heat than previously thought

Scripps researchers use oxygen, carbon dioxide measurements to infer ocean temperature increase.

Solar farm frame of video

UC makes bold commitment to 100 percent clean electricity

The university pledges to transition to clean energy by 2025.

Two UC Davis students do a high-five

UC makes the grade for nation’s top green colleges

All nine UC undegraduate campuses included in Princeton Review's Guide to 399 Green Colleges.

A work crew paves the road with material made of recycled plastic

On the road to solving our plastic problem

UC San Diego recently became the first place in the U.S. to install a road made from recycled plastics.