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Mummified Arctic Forest Provides Clues of Dramatic Climate Change
Content Provider | WatchKnowLearn |
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Description | No trees grow on windswept Ellesmere Island in the northernmost reaches of Canada. But Ohio State University researchers have just discovered signs that things were different millions of years ago in the mummified remains of a forest uprooted in an avalanche. Melting snow cascading off the side of a glacier uncovered broken tree trunks, branches, and even leaves perfectly preserved with their DNA intact. These remains constitute the northernmost mummified plant material ever found in the Canadian Archipelago. They harken back to a time when the Arctic was far warmer than today and offer clues as to how an ancient ecosystem responded to dramatic climate change. Speaker: Joel Barker, Research Scientist, School of Earth Sciences, The Ohio State University, Columbus, Ohio, USA. |
Language | English |
Access Restriction | Open |
Subject Keyword | Eocene Epoch k-12 homeschool homeschooling home school parents educational videos k12 preK-12 Pre-History History |
Content Type | Video |
Educational Role | Student Teacher |
Educational Use | Self Learning Lecture |
Time Required | PT33M10S |
Education Level | Class XI Class XII Class X |
Pedagogy | Lecture cum Demonstration |
Resource Type | Video Lecture |
Subject | Pre-History |