Lakes across the world have seen an increase in algal blooms that strangle freshwater ecosystems, according to an analysis of satellite images from 1982 to 2019
3 February 2022
Blooms of algae that strangle freshwater ecosystems are occurring more often in lakes across most of the world, according to the first study to map their incidence globally.
An algal bloom is the rapid build-up of algae in a body of water after excess nutrients, such as nitrogen or phosphorous, pollute the ecosystem – often as a result of fertiliser use on farms. The bloom can harm other organisms, including fish and insects, by blocking out light, …