Trees are the exclusive source of large amounts of atmospheric oxygen
the verdict
REFUTED
the evidence says no
confidence 15/100
Trees are not the exclusive source of large amounts of atmospheric oxygen; marine phytoplankton and oceanic primary productivity contribute roughly half of the global total.
Evidence against · 3
Fatty Acid Profiles and Production in Marine Phytoplankton
2019 · cited by 275
Paper [0] discusses marine phytoplankton as primary producers that fix carbon and support marine food webs.
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More against · 2
The geologic history of primary productivity.
2023 · cited by 65
Paper [1] notes that modern estimates show terrestrial and marine realms contribute near-equal amounts to global gross primary productivity.
New constraints of terrestrial and oceanic global gross primary productions from the triple oxygen isotopic composition of atmospheric CO2 and O2
2023 · cited by 13
Paper [2] constrains gross primary productivities of both terrestrial and oceanic biospheres, highlighting significant oceanic contributions to global carbon and oxygen cycles.