From: Gronk <invalide@invalid.invalid>
Newsgroups: alt.global-warming,alt.fan.rush-limbaugh,can.politics,alt.politics.liberalism,alt.politics.democrats,alt.politics.usa.republican
Subject: Re: I Forgot... How Many Of You Said It's The Hottest It's Ever Been
Date: Wed, 18 Jun 2025 23:17:32 -0600
Organization: 2 0
AlleyCat wrote:
>
> This tree must have grown UNDER the glacier, huh?
>
> https://pbs.twimg.com/media/GSS-H5fbsAACAcy?format=jpg&name=900x900
>
> This 4,940 year old tree, recently uncovered due to a receding glacier, must have grown under the glacier as I am continuously told that
> today is the warmest it's been in 125,000 years.
https://www.sciencedirect.com/science/article/abs/pii/003358947190069X
Late-quaternary vegetation and climate near the
arctic tree line of northwestern North America
Abstract
Earlier studies in Alaska and northwest Canada
have shown inconsistent evidence for the expected
northward extension of the Arctic tree line during
the Hypsithermal Interval. Only megafossil
evidence has supported this suggestion; the
palynological findings have been inconclusive.
The Tuktoyaktuk Peninsula, in the Northwest
Territories of Canada, offers critical sites
for studies of late-Pleistocene ecology, because
of its geological, biotic, and climatological
features. Palynological and megafossil evidence
is presented from sites on the Tuktoyaktuk
Peninsula, indicating northward advance of the
Arctic tree line during the period 8500-5500
B.P. Relative pollen frequencies of a core of
lake sediment suggest a late-Pleistocene
sequence as follows: 12,900-11,600 dwarf birch
tundra; 11600-8500 forest tundra; 8500-5500
closed-crown spruce-birch forest; 5500-4000 tall
shrub tundra; 4000-present dwarf birch heath
tundra. These results suggest that during the
Hypsithermal Interval the Arctic Front (July
position) was further north, over the Beaufort
Sea, a displacement from its present position
of about 350 km. The Tuktoyaktuk Peninsula,
presently occupied by tundra, and dominated by
the Arctic airstream in July, was apparently
under forest, with warm, moist Pacific air
during the Hypsithermal Interval.
"A rooted stump of Picea glauca on the
side of a morainic hill, 11 km northeast
from Tuktoyaktuk 5, discovered (by
J.C.R.) in the summer of 1969..."
https://en.wikipedia.org/wiki/Holocene_climatic_optimum