Environmental Change in ice-free Greenland: a Review Umhvørvisbroyting í tí ísfría Grønlandi: eitt yvirlit
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Abstract
Little is known about non-marine biotas prior to the last deglaciation, but at 2.5 million years ago, forest-tundra with small trees indicating a mean summer temperature 7-8°C higher than today existed in North Greenland. During the last interglacial stage, at c. 115-130,000 years ago, scrub and healt vegetation in East Greenland indicates a mean summer temperature c. 5°C higher than today. During the temperature minimum of the last ice age, temperatures were so low that only very hard plants and animals could survive in Greenland. After the last deglaciation that began at 11,500 years ago, a pioneer vegetation without woody plants began to cover the land. Temperatures probably already peaked in the early part of the postglacial, but many plants and animals, including man, immigrated to Greenland after temperatures had begun to decline.
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