Atmospheric CO₂ reaches a minimum recorded in Antarctic ice

Assembled from 21 blocks · 2 evidence · 14 related

1. Story
2. Ice cores from Antarctica record a decline in atmospheric carbon dioxide through the late sixteenth century to a minimum around 1610. Lewis and Maslin proposed in 2015 that the dip is the atmospheric trace of the American population collapse, as tens of millions of hectares of managed land reverted to vegetation, and put it forward as a candidate marker for the start of the Anthropocene. The attribution and the boundary are both contested, and the stratigraphic community subsequently favoured a mid-twentieth-century marker.
3. Knowledge
4. The post-contact population collapse of the Americas
5. The 1610 CO₂ minimum ("Orbis spike")
6. Atmospheric CO₂ reaches a minimum recorded in Antarctic ice
7. Connections
8. The 1610 CO₂ minimum ("Orbis spike")
9. The post-contact population collapse of the Americas
10. The post-contact population collapse of the Americas
11. Atmospheric CO₂ reaches a minimum recorded in Antarctic ice
12. The Columbian Exchange
13. The transatlantic slave trade
14. The 1610 CO₂ minimum ("Orbis spike")
15. Smallpox reaches Tenochtitlan
16. Atmospheric CO₂ reaches a minimum recorded in Antarctic ice
17. Earth system impacts of the European arrival and Great Dying in the Americas after 1492
18. Historia general de las cosas de Nueva España (Florentine Codex), Book XII
19. Evidence
20. The proposal that the c. 1610 minimum in the Antarctic ice-core CO₂ record be adopted as the marker for the start of the Anthropocene, on the argument that it records vegetation regrowth following the American population collapse. V55 verification basis: NOT consulted in this session — no network access. The volume number is given from the author's knowledge; pagination is deliberately omitted.
21. Supports the reconstruction of pre-contact American population, the scale of post-contact decline, the area of farmland abandoned and the resulting drawdown of atmospheric CO₂. V55 verification basis: NOT consulted in this session — no network access was available. The Journey declaration itself cites this paper as "Quaternary Science Reviews 207, 13", which corroborates the volume but is not independent confirmation. Every figure this pack attributes to it is flagged in the citing object's `missing` list as requiring a check against the paper.