Jovial Monk wrote on Jan 28
th, 2025 at 5:35pm:
Quote:
Pristine ancient forest frozen in time in Rocky Mountains
A melting ice patch in the Rocky Mountains uncovered an ancient forest, and these trees have stories to tell about dynamic landscapes and climate change.
Jovial Monk wrote on Jan 28
th, 2025 at 5:35pm:
Idiots tell me this shows it was warmer in the MWP. Nope, warmer now than at any time in the Holocene Optimum. Globe is warming up so ice retreats north exposing the remains of old forests etc. With time where the ice was the tundra thaws and bacteria then weeds then trees grow in the new soil and the treeline marches north (or south down here of course.)
Quote:
Beartooth Plateau, which sits at an altitude of over 10,000 feet (3,000 meters), is a barren, tundra-like landscape. But it hasn't always been that way; an ancient forest lies beneath layers of ice.
Cooling temperatures about 5,500 years ago quickly encased this whitebark pine (Pinus albicaulis) forest in ice, preserving the trees in nearly perfect condition. Now, as ice patches frozen for millennia melt due to climate change, researchers are finding clues about what this ancient landscape was once like, and how it was preserved. They detailed their findings Dec. 30, 2024, in the journal PNAS.
"No one had any idea that these patches of ice had been around for thousands of years," David McWethy, an associate professor in the Department of Earth Sciences at Montana State University and co-author of the study, told Live Science. "Things looked dramatically different than they do today."
This ancient forest of whitebark pines thrived for centuries at much higher elevations than the same tree species that can be found in the region today. This is because the global climate went through a warm period between the end of the last ice age, about 10,000 years ago, and the time when these whitebark pines died over 5,000 years ago.
A long time for these trees to be buried!
Strangely enough the end of the Holocene
was about 5,500 years ago. Not that poor JM will admit it.