Quote:
Originally Posted by Undertoad
Particularly during the Late Glacial Interstitial, in which Europe and N. America unquestionably saw a period of a lot of warming. That period is not noticed on the xkcd graph, presumably because smoothing? Whatevs, it's one single study and so it gets a big "mmmmmmaybe". |
Quote:
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Originally Posted by wiki
Late Glacial (13,000–10,000 years ago).
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That period is indeed noticed on the xkcd chart. There's a noticeable hump. At 13000BC warming accelerates noticeably, then levels and falls back a bit by 10500BC, whereupon it resumes warming.
Relevant events on the graph:
- Glacial dams burst in Washington State
- Ice sheets withdraw from Chicago
- Floods of meltwater in the Atlantic cool Northern Hemisphere (Younger Dryas, as mentioned in the wiki page you provided)
ETA: Apologies; missed mention of
Late Glacial Interstadial c.14,670 to c.12,890 in the wiki page. There is no hump there. I find it difficult to parse whathe wiki is trying to say about it, though - it says it is "the first
pronounced warming
since the end of the LGM", but the "LGM" ends at 13000BC. The previous uptick in temperature in xkcd before 13000 is a bit before 15000.