Algal bloom or 'May Rot' brings smelly sludge to Brighton beaches

The warmer weather has drawn people to the coast in Brighton, but some are wary of taking a dip due to the presence of brown, foul-smelling sludge on patches of the water. The phenomenon, known as algal bloom or "May Rot," occurs when tiny plant-like organisms called phytoplankton increase rapidly due to sudden warmth and brightness. While not everyone is deterred, with some swimmers embracing the experience, marine biologists advise caution as some algal blooms are toxic. The smell is caused by the dying organisms releasing gases, and excess nutrients from agricultural runoff or sewage can exacerbate the scale. (BBC)