Sea foam may look sinister but it is mostly harmless and natural
via theguardian.com
Short excerpt below. Read at the original source.
Phenomenon, often seen around Britain’s coast at this time of year, is caused by a combination of algae and weather At this time of year a sinister-looking substance can often be sighted around Britain’s coast: a frothy foam piled up along the shoreline or appearing in long ribbons offshore. People sometimes assume this foam is […]