Undermines· moderateYDIH-E029
Page-Ladson 2026: a volcanic rival for the trigger and the geochemistry
- what the source states
- Highly-siderophile-element and osmium-isotope geochemistry at Page-Ladson, Florida reported volcanic signatures in Younger Dryas onset sediments and proposed volcanic forcing as a contributing trigger for the cooling.
- what we infer
- A second site where discriminating geochemistry favors volcanism over impact, and — more importantly for the attribution — a rival exotic trigger with actual source evidence behind it. Carried at moderate strength: it is one very recent study and should itself be treated as an emerging hypothesis, not a new consensus.
- limitations
- Published April 2026; needs replication, independent age synchronization, and climate-model testing.
- A volcanic trigger for the YD would be a rival hypothesis, not a confirmation of the conventional meltwater account.