BBC: Harmful algae spreads across lake in heatwave
"Prolonged high temperatures have seen harmful algae blooms spread across the ""entirety"" of England's largest lake, a campaigner has warned.
Zoologist Matt Staniek said the situation at Windermere, in the Lake District, was becoming ""critical"".
The blue-green blooms can make humans ill and be fatal to animals.
The Love Windermere partnership, led by the Environment Agency, said it had a long-term commitment to improving the lake's water quality.
Although algal blooms occur naturally, they are more frequent during warm, dry weather like that seen in recent weeks and are exacerbated by nutrients from phosphate in pollutants such as sewage."
