Environment Content

Lake Tahoe Clarity Report: Trend Stable, Not Improving

Katherine E Kerlin — June 16, 2025 - 5:35pm

51�ԹϺ�� Davis Tahoe Environmental Research Center releases its annual Tahoe Clarity Report.

CA Clean Air Law Making Strides in Overburdened Neighborhoods

Katherine E Kerlin — June 12, 2025 - 10:56am

For years, families in the Bay Area city of Richmond have lived with smoke and chemicals drifting from a nearby oil refinery. That kind of exposure poses serious health risks, but a new report from 51�ԹϺ�� Davis shows how California’s Assembly Bill (AB) 617 is helping residents take a more active role in monitoring and reducing air pollution in their neighborhoods.

Fish ‘Beauty Salons’ Offer Insight into How Microbes Move Within Reefs

Katherine E Kerlin — June 05, 2025 - 9:05am

Where do you go when you’re a fish and you need a skincare treatment? Coral reefs contain natural “beauty salons,” lively social hubs of activity where fish “clients” swim up and wait to be serviced by smaller fish cleaners. The little cleaners dart under and around their much bigger clients — even entering their mouths — cleaning their scales of bacteria and parasites like a team of car washers servicing a Buick. Sometimes cleaners even rub against their clients, providing a soothing massage.

4 Gorillas Reintroduced to the Wild in DRC

Katherine E Kerlin — May 29, 2025 - 10:21am

Four critically endangered female eastern lowland gorillas rescued from the illegal wildlife trade were reintroduced to the wild in Virunga National Park in Democratic Republic of the Congo last December. Continued monitoring shows the gorillas are healthy and appear to be transitioning well.

City-Dwelling Monarch Butterflies Stay Put

Andy Fell — May 28, 2025 - 10:00am

Monarch butterflies are famous for their annual migrations, but not all migrate. In recent years, more and more monarchs have been living and breeding year-round in California’s Bay Area, thanks in part to the growing presence of non-native milkweeds in urban gardens.

Course Inspires Next Generation of California Naturalists

Jocelyn C Anderson — May 27, 2025 - 8:30am

Students who complete “Wild Davis,” an 51�ԹϺ�� Davis course in wildlife conservation and habitat restoration, can earn California Naturalist Certification.

Extreme Weather Cycles Change Underwater Light at Tahoe

Katherine E Kerlin — May 21, 2025 - 9:00am

Large shifts in UV radiation at Lake Tahoe are associated with wet and dry climate extremes, finds a 51�ԹϺ�� Davis study.

Native Turtles Return to Yosemite After Removal of Invasive Bullfrogs

Katherine E Kerlin — May 20, 2025 - 9:00am

After invasive American bullfrogs croak, native turtles return to Yosemite, finds a 51�ԹϺ�� Davis study.

California Risks Billions in Economic Losses Without Water Supply Action

Katherine E Kerlin — May 14, 2025 - 2:28pm

A new economic analysis by 51�ԹϺ�� professors shows the high cost of inaction on California’s perpetual water supply challenges. It estimates that the state could lose enough water each year to supply up to 9 million households — with economic losses totaling between $3.4 and $14.5 billion per year, depending on the severity of the scenario.

How One Word Could Strip the Endangered Species Act

Katherine E Kerlin — May 13, 2025 - 12:31pm

A rule change proposed by the Trump administration could green-light the destruction of protected species' habitats and gut the Endangered Species Act, write an ecologist and law professor.