Nature · 2
What percentage of the world's oxygen is produced by forests?
Answer
28%
Forests produce approximately 28% of the world's oxygen through photosynthesis, while marine ecosystems contribute about 50% and other vegetation accounts for the remainder. Despite the Amazon's importance, forests worldwide generate less oxygen than ocean ecosystems, yet they remain critical carbon sinks and biodiversity reservoirs. Deforestation directly reduces global oxygen production and accelerates climate change.
💡 Did you know?
A single mature tree produces enough oxygen in one year to support two people—trees are living air purifiers.
Other options people guess
- 10%
- 50%
- 75%
Topics
- plants
- ecosystems
- oxygen
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