A scientific study on carbon spherules concluded the particles were of natural biological origin and unrelated to intense wildfires or cosmic impacts.
Notes on verification
Accurately reflects the 2010 Scott et al. peer-reviewed study and press coverage, but the topic remains scientifically contested, with later work challenging the fungal-origin interpretation via nanodiamond evidence. Represents one side of an ongoing debate rather than settled consensus. [tier=gold indep_score=0.867 clusters=3 claim_tier=notable]
Sources
- Fungi, Feces Show Comet Didn't Kill Ice Age Mammals? (seed:history_and_archaeology)
- https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2010GL043345 (corroboration)
- https://news.agu.org/press-release/fossil-evidence-casts-doubt-on-younger-dryas-impact-theory/ (corroboration)
- https://www.astronomy.com/science/fossil-evidence-casts-doubt-on-younger-dryas-impact-theory/ (corroboration)