# Impact-driven fires and an impact winter tipped the climate.

> Disputed: Impact-driven fires and an impact winter tipped the climate.

Source: https://mysteriesdept.com/mysteries/younger-dryas-impact/answers/ANS0D51XN8M37Y6/impact-driven-fires-and-an-impact-winter-tipped-the-climate  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Younger Dryas impact hypothesis](https://mysteriesdept.com/mysteries/younger-dryas-impact)[What triggered the Younger Dryas cooling?](https://mysteriesdept.com/mysteries/younger-dryas-impact/questions/QST0D51X99T2T4C/what-triggered-the-younger-dryas-cooling)Answer

Answer · Younger Dryas impact hypothesis

# Impact-driven fires and an impact winter tipped the climate.

Impact-driven fires and an impact winter tipped the climate.

**Disputed** Answers **1** questionPublished0

## Where it stands

**Disputed** One piece of evidence for, one against. It needs two reviews to be accepted.

## What it predicts

- A global combustion spike exactly at the onset in ice and sediment.
- An impact layer at the onset (see Q-IMPACT).

## What would rule it out

- No impact at the onset, or combustion records showing no spike there.

## Evidence 1 for · 1 against

[Ice-core combustion markers are said to show a biomass-burning episode at the onset.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XNGE2B10/ice-core-combustion-markers-are-said-to-show-a-biomass)

Speculative

FOR

[Geomorphic, stratigraphic and fire records show no catastrophic change at the boundary.](https://mysteriesdept.com/mysteries/younger-dryas-impact/evidence/EVD0D51XNR83V1Y/geomorphic-stratigraphic-and-fire-records-show-no)

Supported

AGAINST

## The questions it answers

[What triggered the Younger Dryas cooling?](https://mysteriesdept.com/mysteries/younger-dryas-impact/questions/QST0D51X99T2T4C/what-triggered-the-younger-dryas-cooling)

Most likelyMeltwater from the retreating ice sheets weakened the Atlantic overturning circulation

## Cite it

```
Mysteries Department. (2026). Impact-driven fires and an impact winter tipped the climate. [Answer ANS0D51XN8M37Y6]. https://mysteriesdept.com/r/ANS0D51XN8M37Y6
```

Key

**ANS** 0D51XN8M37Y6

Kind

Answer · hypothesis

Origin

Published

Version

1

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