Have you seen or heard of the green algae blooms in the lake?

Nitrogen in agricultural run-off can feed algae blooms that create coastal dead zones.

Starving sea lion pups, jellyfish swarms, toxic algae blooms.

Their present colouring comes from algae blooms.

Scientists have collected samples from algae blooms found during an inspection of Lake Taupō swimming sites this weekend.

Although red and orange algae blooms have also been seen on Antarctica, this was not documented in the study.

High concentrations of chemicals in rivers can contribute to changes in aquatic plant and fish life, including fish kills and algae blooms.

Mere pond scum morphs into algae blooms weighing tons, which suck so much oxygen from freshwater that everything swimming in it dies.

The use of nitrogen -which is needed for fertilizer, but causes oxygen-chokingalgae blooms -is nearly four times higher than recommended.

We've done better with Erie because of its size, and we have short-term algae blooms and some small areas of water weed re-establishing.

Toxic algae blooms have been a growing problem in the Pacific Northwest during the past several years, a trend scientists attribute to warming waters.

Satellite pictures showed a steadily climbing percentage of greenery all across the five continents, and further massive algae blooms had appeared in the oceans.

Toxic algae blooms are common in polluted waterways around the country, particulalry in summer, and algae mats can be fatal to dogs, if eaten.

The frequent harmful algae blooms (HABs) in eutrophic waters pose serious threats to the water environment and health of human beings and animals.

Toxic algae blooms have been a growing problem in the U.S. Pacific Northwest during the past several years, a trend scientists attribute to warming waters.

You can listen to an earlier Our Changing World interview about a trial using a UAV to monitor toxic algae blooms from the air here.