What makes whales fin-tastic nature champions?

Whales support the ocean's carbon-sequestering capacity by acting as a 'phytoplankton multiplier'. Through the 'whale pump' (vertical movement of minerals) and the release of nutrient-rich waste containing iron, phosphorus, and nitrogen, whales fertilize marine ecosystems. This supports phytoplankton, which capture approximately 37 billion metric tons of carbon dioxide and produce at least 50% of the atmosphere's oxygen. Despite a ban on commercial whaling, whale populations remain significantly lower than pre-commercial levels, with six of the 13 great whale species listed as endangered or vulnerable due to threats like ship strikes, plastic pollution, and climate change.

• Great whales, including baleen and sperm whales, facilitate nutrient cycling in the ocean, which indirectly affects the amount of planet-heating carbon in the atmosphere.
• Whales increase phytoplankton populations via two primary mechanisms: the 'whale pump', where vertical movement stirs deep-ocean minerals to the surface, and the production of waste rich in nitrogen, phosphorus, and iron.
• Phytoplankton serve as critical carbon sinks, capturing about 37 billion metric tons of carbon dioxide—roughly 40% of all produced CO2—and generating at least 50% of the atmosphere's oxygen.
• The sinking of phytoplankton and zooplankton excrement to the ocean floor represents 70% of the total global carbon export.
• Current whale populations are estimated at 1.3 million, a significant decrease from the 4 to 5 million present before commercial whaling; six of the 13 great whale species are now endangered or vulnerable.

APA

WWF International (n.d.). What makes whales fin-tastic nature champions? https://www.worldwildlife.org/resources/explainers/wildlife-climate-heroes/what-makes-whales-fin-tastic-nature-champions/

Chicago

WWF International. What makes whales fin-tastic nature champions? n.d. https://www.worldwildlife.org/resources/explainers/wildlife-climate-heroes/what-makes-whales-fin-tastic-nature-champions/.

Wikipedia

{{cite report |author=WWF International |title=What makes whales fin-tastic nature champions? |url=https://www.worldwildlife.org/resources/explainers/wildlife-climate-heroes/what-makes-whales-fin-tastic-nature-champions/ |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{wwfinternationalndwhat, author = {{WWF International}}, title = {{What makes whales fin-tastic nature champions?}}, institution = {WWF International}, url = {https://www.worldwildlife.org/resources/explainers/wildlife-climate-heroes/what-makes-whales-fin-tastic-nature-champions/}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }