San Diego’s Mysterious Sea Foam Baffles ResidentsSan Diego’s Mysterious Sea Foam Baffles Residents Residents of San Diego have been left puzzled by a mysterious layer of sea foam that has blanketed the city’s coastline. The frothy white substance has appeared in various parts of the city, including Mission Beach, La Jolla, and Pacific Beach. The foam has been described as thick and persistent, creating a surreal scene along the shore. Residents have been seen walking through the foam, taking pictures, and even surfing on it. The origin of the foam is still unknown, but several theories have been suggested. Some scientists believe it could be caused by a combination of factors, including algae blooms, wave action, and pollution. Algae blooms are common in San Diego’s coastal waters during certain times of the year. When these blooms die and decompose, they can release organic matter that can create foam when agitated by waves. Wave action can also contribute to the formation of sea foam. When waves break on the shore, they create bubbles that can trap air and form foam. Pollution, such as oil or sewage, can also contribute to sea foam. These substances can act as surfactants, which lower the surface tension of water and make it easier for bubbles to form. The amount of foam has varied from day to day, and it is unclear how long it will last. Some experts believe the foam could dissipate within a few days, while others suggest it could persist for several weeks. While the foam is unsightly, it is generally considered harmless to humans. However, it can irritate the eyes and skin, and it is recommended to avoid swimming in areas with high levels of foam. Scientists are continuing to study the foam to determine its exact cause and potential effects on the marine environment. In the meantime, residents continue to marvel at the mysterious phenomenon and share their photos and videos on social media.