The Paleocene-Eocene thermal maximum was caused by natural greenhouse gas releases
the verdict
SUPPORTED
the evidence backs this
confidence 83/100
Multiple paleoclimate studies confirm that the Paleocene-Eocene thermal maximum was driven by massive natural releases of greenhouse gases such as methane and carbon dioxide into the atmosphere and ocean.
Evidence for · 5
Spatial patterns of climate change across the Paleocene-Eocene Thermal Maximum.
2022 · cited by 19
Paper [0] analyzes the PETM as a natural greenhouse world analog driven by high greenhouse gas concentrations.
See more details
More for · 4
Methane release from gas hydrate systems during the Paleocene-Eocene thermal maximum and other past hyperthermal events: setting appropriate parameters for discussion
2011 · cited by 15
Paper [1] discusses massive natural carbon input from seafloor gas hydrate dissociation during the PETM onset.
Surface ocean warming and acidification driven by rapid carbon release precedes Paleocene-Eocene Thermal Maximum.
2022 · cited by 9
Paper [2] links surface ocean warming and acidification to a rapid natural carbon release prior to the PETM.
Long- and short-term coupling of sea surface temperature and atmospheric CO<sub>2</sub> during the late Paleocene and early Eocene.
2024 · cited by 3
Paper [3] reconstructs CO2 and temperature coupling, indicating natural methanogenic or organic carbon sources drove PETM warming.
A seasonality trigger for carbon injection at the Paleocene-Eocene thermal maximum
2013 · cited by 0
Paper [9] suggests seasonal extremes and natural environmental triggers led to the massive carbon injection during the PETM.