July 13, 2025 Breaking News, Latest News, and Videos

Light Pollution Causes Santa Monica Mountain Ecosystem to Suffer:

Not surprisingly given its proximity to the Los Angeles area, the Santa Monica Mountains National Recreation Area suffers from high levels of light pollution that not only affect nighttime views of the sky, but also can disrupt wildlife ecosystems, according to a study released today.

The study, which examined satellite data over the past two decades to estimate changes in light pollution at various national parks, found some decreases in light pollution in select parts of the Santa Monica Mountains range. But researchers noted that the park has been at the maximum level of light pollution since 1992 along its borders with Los Angeles, so it was difficult to determine if the level in that area has increased.

"The good news is that we now have a baseline measure of the lighting conditions within Southern California’s coastal national park units," said Tom Gillespie, lead author of the study and a UCLA geography professor. "Now we can work with people in the cities in the surrounding regions to decrease their contribution to the problem and conserve night skies.

"Rarely are ecological problems remedied this easily, through small actions by large numbers of people," he said.

National Park Service officials said the study is the first step in a long-term effort to monitor light pollution in national parks and establish a methodology for continuing study of the issue.

"There have been many studies showing that artificial light disrupts ecosystems," said Stacey Ostermann-Kelm of the Mediterranean Coast Network Inventory and Monitoring Program, which monitors the ecological health of the parks. "The orientation of animals moving across the landscape and the timing of seasonal and daily activities such as breeding and nesting of birds can be influenced by night lighting."

The study found that there have been some drops in light pollution in some interior areas of the Santa Monica Mountains and Simi Hills, while some increases were detected around the edges of the park, in the Conejo Valley, along the coast and in western Malibu.

Decreases were likely the result of nighttime-lighting restrictions in areas adjacent to the mountains, according to the study’s authors.

The study also found that light pollution has decreased over the past two decades in the Cabrillo National Monument in San Diego and remained extremely low in Channel Islands National Park.

in News
<>Related Posts

County Health Leaders Decry Federal Policy Barring Undocumented from Programs

July 12, 2025

July 12, 2025

The officials argued the policy jeopardizes care for all residents, noting it could deter people—regardless of status—from seeking treatment  Leaders...

County Supervisors Move to Preserve Measure J Amid Charter Error

July 12, 2025

July 12, 2025

Measure J mandates that at least 10% of the county’s locally generated, unrestricted funds be allocated to community investments like...

LA Medical Center Seeks Help Identifying Unconscious Patient

July 12, 2025

July 12, 2025

He has been unconscious since admission, and staff have been unable to determine his identity Los Angeles General Medical Center,...

Mayor Bass Issues Directive to Protect Immigrant Communities

July 12, 2025

July 12, 2025

The order expands access to city resources for affected families and requests records from ICE, including details on arrests Mayor...

Downtown Santa Monica CEO Andrew Thomas to Step Down

July 11, 2025

July 11, 2025

Thomas, who rejoined DTSM, Inc. in 2022, oversaw the introduction of a private security program, expanded homeless outreach, and boosted...

Conservancy to Tour Historic Miles Playhouse at State of the City Event

July 11, 2025

July 11, 2025

Built in 1929, the Miles Playhouse serves as the centerpiece of Lincoln Park The Santa Monica Conservancy will offer 15-minute...

Sen. Ben Allen Highlights Challenges, Economic Gains for LA28 Olympics

July 11, 2025

July 11, 2025

The remarks came during the first informational hearing of the Senate’s Special Committee on International Sporting Events State Sen. Ben...

(Video) Summer Camp at School of Rock West LA Turns Kids Into Rockstars

July 11, 2025

July 11, 2025

To Sign Up Now, Go To Schoolofrock.com Summer Camp at School of Rock West LA Turns Kids Into Rockstars To...

L.A. Louver Marks David Hockney’s 88th with Exhibit

July 11, 2025

July 11, 2025

Hockney, a British artist born in 1937, gained fame with the British Pop Art movement and later became known for...

Suspect Arrested in Shoe Retail Theft Spree Across LA County

July 11, 2025

July 11, 2025

During the search, police recovered two firearms and a significant quantity of merchandise The Los Angeles Police Department’s Organized Retail...

Suspect Arrested in Santa Monica Pier Arson Incidents

July 10, 2025

July 10, 2025

The suspect, matching video footage from an arcade, was taken into custody Santa Monica Police Department officers arrested a suspect...

SMPD Launch New Recruitment Website Amid High Vacancy Rates

July 10, 2025

July 10, 2025

The site features multimedia content, including day-in-the-life videos and officer profiles, highlighting the impact of serving the community The Santa...

Father-Daughter Authors to Host Book Signing to Aid Fire-Affected Women

July 10, 2025

July 10, 2025

Ten percent of proceeds from book and art sales will benefit the Pacific Palisades Rebuilding Fund, a nonprofit initiative created...

Metro Reports Crime Drop, Higher Rider Satisfaction, and Progress on Major Projects

July 9, 2025

July 9, 2025

The Authority said the drop in violent incidents—down to the lowest level since May 2019—coincided with more uniformed personnel and...

Santa Monica Joins Regional Lawsuit to Halt Unconstitutional ICE Raids

July 9, 2025

July 9, 2025

The motion to intervene seeks to ensure that Santa Monica and other plaintiff-intervenors can advocate for their residents’ rights in...