![[aggregator] downloaded image for imported item #1916](https://echoesofthelastmind.com/wp-content/uploads/2020/06/ocean-surface-960.jpg "How much oxygen comes from the ocean?")
Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean. The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize. One particular species, Prochlorococcus, is the smallest photosynthetic organism on Earth. But this little bacteria produces up to 20% of the oxygen in our entire biosphere. That’s a higher percentage than all of the tropical rainforests on land combined.
This was originally published on https://oceanservice.noaa.gov/facts/ocean-oxygen.html
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