New Zealand experiences a rise in toxic cyanobacteria in lakes and rivers due to warm weather.

New Zealand has seen an increase in toxic algae, known as cyanobacteria, in lakes and rivers this summer due to the country's warm, stable weather. This type of algae thrives in calm, shallow water and slow-moving rivers and streams, posing a risk to people and animals as it can produce toxins. NIWA's Algal Services has reported a significant increase in monitoring and analyzing water sources for toxic algae outbreaks.