A harmful algal bloom occurs in bodies of freshwater when Cyanobacteria, also called blue-green algae, produce toxins.

Earth's oceans could one day turn purple. Nearly three fourths of Earth is covered by oceans, making the planet look like a ...

IF your fence is covered in stubborn green algae, this 35p cleaning hack might just do the trick. Green algae may form on the slats following damp weather conditions over winter. As it turns out ...