[HN Gopher] Palm phytoliths in subarctic Canada imply ice-free w...
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Palm phytoliths in subarctic Canada imply ice-free winters 48M
years ago
Author : Stratoscope
Score : 16 points
Date : 2025-03-02 23:07 UTC (3 days ago)
(HTM) web link (academic.oup.com)
(TXT) w3m dump (academic.oup.com)
| Stratoscope wrote:
| Popularized summaries:
|
| _Study reveals palm trees once thrived in subarctic Canada_
|
| https://www.eurekalert.org/news-releases/1074307
|
| _New study reveals Canada's subarctic was once a tropical
| paradise_
|
| https://www.ctvnews.ca/sci-tech/article/new-study-reveals-ca...
| indoordin0saur wrote:
| What would the equator have been like at this time? Too hot for
| human life?
| mistrial9 wrote:
| more info https://en.wikipedia.org/wiki/Eocene_epoch
| semi-extrinsic wrote:
| For some reason, the temperature difference from the poles to
| the equator was much smaller at that time than it is now.
| Explaining why is an open challenge known as the equable
| climate problem.
| justinsaccount wrote:
| Am I the only one that read that as "Palm Pilots" and was every
| confused about 48M year old PDAs?
| el_don_almighty wrote:
| The kimberlite source of these phytoliths and their age makes me
| question our confidence in their origination from the arctic
| surface. Is it at all possible this material was cycled through
| plate tectonics which subducted it from a southern source and
| eventually ejected far north through volcanic action? I mean, a
| lot could happen over 48M years...
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(page generated 2025-03-06 23:00 UTC)