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Sustainability Times
5 days ago
- Science
- Sustainability Times
'This Changes Everything': Scientists Unearth Pristine Ancient Forest Frozen For Thousands Of Years In Rocky Mountains
IN A NUTSHELL 🌲 The melting ice in the Rocky Mountains reveals a long-hidden, ancient forest , offering a rare glimpse into the past. , offering a rare glimpse into the past. 🧊 Preserved whitebark pines date back thousands of years, kept intact by ice due to climatic shifts. date back thousands of years, kept intact by ice due to climatic shifts. 🧭 Artifacts found, like a 10,000-year-old spear shaft, suggest early human activity in what was once a lush ecosystem. in what was once a lush ecosystem. 🔍 The discovery highlights the impact of climate change on alpine regions and the vulnerability of these ecosystems. In the rugged and often inhospitable high-altitude landscapes of the Rocky Mountains, a remarkable discovery has captured the attention of scientists and historians alike. As climate change causes ice patches to recede, an ancient forest, long buried under ice, is emerging on the Beartooth Plateau. This area, once a thriving ecosystem, now offers an extraordinary glimpse into the past. Researchers are uncovering the secrets of this frozen forest, providing insights into climate shifts and the resilience of ecosystems. This discovery not only highlights historical climatic changes but also serves as a poignant reminder of the current environmental challenges faced by alpine regions. The Discovery of a Frozen Forest As the ice melts at altitudes exceeding 10,000 feet in the Rocky Mountains, a hidden forest has begun to emerge. The whitebark pines, preserved in ice for millennia, are being revealed for the first time. This extraordinary find has sparked significant interest among scientists studying climate patterns and ecological history. The Beartooth Plateau, once a thriving forest, now resembles a barren tundra, but this was not always the case. Thousands of years ago, cooler temperatures encased the forest in ice, preserving it for future generations to discover. 'No one had any idea that these patches of ice had been around for thousands of years,' remarked David McWethy, an associate professor at Montana State University. The recent findings, published in the journal PNAS, have opened a window into the past, offering clues about the environment and climate of ancient times. The pristine condition of these trees provides a unique opportunity to study the ecosystem as it existed thousands of years ago. Climatic Shifts and Preservation The preservation of these trees is due to a series of climatic events that began over 5,500 years ago. As the climate cooled, volcanic eruptions further contributed to a rapid drop in temperatures, encasing the forest in ice. This sudden preservation has kept the whitebark pines in near-perfect condition, allowing scientists to examine them in detail. The global climate experienced a warm period following the last ice age, which allowed these trees to thrive at higher altitudes than their modern counterparts. 4 Tons of Water, 19 Firefighters: Greece Unleashes Airbus H215 Mega-Helicopters in Massive Aerial Firefighting Revolution As the ice melts, researchers are finding not just trees but also artifacts that tell the story of human activity in the region. Craig Lee, an assistant professor at Montana State University, discovered a 10,000-year-old wooden spear shaft, suggesting that humans hunted in this once-lush environment. 'You go there now and it's beautiful — it's a very dramatic landscape — but it's a little stark,' noted Cathy Whitlock, director of the Paleoecology Lab at Montana State University. Implications of Climate Change The melting of the ice patches on the Beartooth Plateau is emblematic of broader climate change impacts. As global temperatures rise, high-elevation areas are experiencing accelerated warming. This has led to the exposure of the frozen forest, providing both scientific opportunities and environmental warnings. While the discoveries are scientifically valuable, they underscore the vulnerability of alpine ecosystems to changing climates. The uncovering of the forest serves as a stark reminder of the delicate balance in these environments. 'Only the Oldest Oceanic Plates Can 'Transport Water Deep Into the Mantle'' Reveals New Olivine Heat Conductivity Breakthrough 'These kinds of discoveries are scientifically really interesting, but they're also a sad reminder of how fragile these alpine ecosystems are to climate change,' said Whitlock. The melting ice may reveal more about past ecosystems, but it also highlights the urgent need for action to mitigate current climate challenges. A Window Into the Past The newly revealed forest offers a rare glimpse into the past, providing insights into ancient ecosystems and climate conditions. As scientists continue to study the preserved trees, they hope to learn more about the historical climate patterns and how life adapted to those conditions. The forest's emergence tells a story of change, resilience, and adaptation in the face of climatic shifts. The findings have important implications for understanding both past and future climate dynamics. Philip Mote, an Oregon State University professor, commented on the significance of the find, stating, 'I'm sure all sorts of things got buried under the ice.' Indeed, the continued melting of ice patches may uncover more artifacts and provide further data for scientific study. The research conducted on the Beartooth Plateau is a testament to the ever-evolving understanding of our planet's history. As scientists delve deeper into the mysteries of this ancient forest, they confront the dual realities of discovery and loss. The melting ice reveals secrets of the past, yet also signals the changes wrought by modern climate challenges. What other hidden histories might be unearthed as the planet's climate continues to evolve? The emerging forest on the Beartooth Plateau prompts us to consider the stories yet untold beneath the ice. This article is based on verified sources and supported by editorial technologies. Did you like it? 4.4/5 (30)
The Guardian
31-07-2025
- Science
- The Guardian
Country diary: The hours pass quickly when you're brushing for trees
We are at the Stori Brymbo heritage site, which was an iron mine and smelting plant until 1990. Outside it is cool, stormy and wet, but we're sheltered under a galvanised roof with the wind rattling and the rain tapping. Beneath us, a sandy, crumbling layer of rock formed 300m years ago from a great thickness of mud and silt that settled in a vast river delta system that once covered this part of Wales. If I squint my eyes, I imagine the vast, stifling, steaming jungle; no grass or flowers, just tall trunks towering above and ferns below, insects flying all around. This was the Carboniferous era in the tropics, long before any dinosaurs or other land animals, and the first 'trees' – club mosses, giant horsetails – grew by 10 to 30 metres in a few months, before dying and falling into the swamps to eventually form our coal. These plants grew so fast and abundantly that they changed the atmosphere, and hastened their own extinction, as we are now. Our guide, Dr Tom Hughes, who grew up locally, wrote his PhD thesis on this, and now he organises volunteers to gently dig and brush away the dust to reveal this ancient forest. The slow process has its rewards. I find a long trunk of Calamites, as thick as a man's arm, divided into sections. Some have curving leaves like giant centipedes. After a while, you get your eye in for the marks you're searching for. I did this so thoroughly on a field trip once as a student that I started seeing them in the wallpaper of the fish-and-chip shop afterwards. Among our other discoveries were a lovely black fern leaf and a bit of a beetle wing-case. Insects were often too delicate to fossilise, but there are dragonflies found at similar sites with 1m wingspans (I secretly hope I find one). Other patches like dark, shiny snakeskin turn out to be diamond-patterned Lepidodendron – another giant plant. The dusty hours pass quickly, until our old hips and knees have locked up. We stumble out into the sun for a drink and look at other treasure seekers' finds. Under the Changing Skies: The Best of the Guardian's Country Diary, 2018-2024 is published by Guardian Faber; order at
