The scientific celebrities, forgetting their mollusks and glacial periods
, gossiped about art, while devoting themselves to oysters and ices with characteristic energy; the young musician, who was charming the city like a second Orpheus, talked horses; and the specimen of the British nobility present happened to be the most ordinary man of the party.
Scientific men perceived in it a confirmation of their theories concerning the glacial period
; so through their persuasions the little tract of ground was bought and permanently protected against being built upon.
Two years may not seem like a long time, but most the world's current permafrost was formed more than 11,000 years ago during cold glacial periods
. Now, these areas of permafrost are thawing in the northern parts of America, Europe, and Asia due to global warming.
Within this era there have been successive glacial periods
, the latest of which rendered most of Europe completely uninhabitable, followed by much shorter, warmer inter-glacials, like the present one.
"If geothermal environments in Antarctica, including subglacial geothermal caves, could indeed have housed invertebrates and plants during past glacial periods
, we hypothesise that diverse species should also live in these environments today."
could have reached a tipping point during these glacial periods
, triggering a series of chain events that caused temperatures to rise abruptly.
During glacial periods
, when there was a drop in global temperatures, expansion of ice around the polar regions and a drop in oceanic sea level and atmospheric carbon dioxide concentrations, there was dilution of the lake, accompanied by the dissolution of Halite salt.
Cold tolerant species often exhibit specific responses to Pleistocene climate oscillations, including range expansions during glacial periods
and altitudinal shifts between glacial and interglacial periods.
The mountain erosion increased approximately one million years ago, when 40,000-year climate oscillations turned into 100,000-year glacial periods
and "erosion of the mountains accelerated under attack from the ice," says Gulick.
Rajsingh talks of glacial periods
, and the hot and dusty Shamal winds.