Tag Archives: Arctic

Lead pollution in Arctic ice shows economic impact of wars and plagues for past 1,500 years

A research team used 13 ice cores from Greenland and the Russian Arctic to measure, date, and analyze lead emissions captured in ice from 500 to 2010 CE. They found that increases in lead concentration in the ice cores track … Continue reading

Posted in Paleontology | Tagged , , , , , , , , , , | Leave a comment

Fossil teeth reveal ancient hyenas in the Arctic

Modern hyenas are known as hunters and scavengers in Asian and African ecosystems such as the savanna. But in ancient times, these powerful carnivores also roamed a very different landscape, inhabiting the frigid Arctic during the last ice age. A … Continue reading

Posted in Paleontology | Tagged , , , , , | Leave a comment

Arctic warming contributes to drought

According to new research, changes similar to those after the ice age 10,000 years ago could be in store today because a warming Arctic weakens the temperature difference between the tropics and the poles. This, in turn, results in less … Continue reading

Posted in Paleontology | Tagged , , , | Leave a comment

Marsupial lived among Arctic dinosaurs

A research team has discovered a previously unknown species of marsupial that lived in Alaska’s Arctic during the era of dinosaurs, adding a vivid new detail to a complex ancient landscape. The thumb-sized animal, named Unnuakomys hutchisoni, lived in the … Continue reading

Posted in Paleontology | Tagged , , , , | Leave a comment

Fingerprint of ancient abrupt climate change found in Arctic

A research team found the fingerprint of a massive flood of fresh water in the western Arctic, thought to be the cause of an ancient cold snap that began around 13,000 years ago. Paleontology News — ScienceDaily

Posted in Paleontology | Tagged , , , , , , | Leave a comment

Primitive fossil bear with a candy tooth recognized from Canada’s Excessive Arctic

Researchers have recognized stays of a three.5-million-yr-previous bear from a fossil-wealthy website in Canada’s Excessive Arctic. Their research exhibits not solely that the animal is an in depth relative of the ancestor of recent bears — tracing its ancestry to … Continue reading

Posted in Paleontology | Tagged , , , , , , , , , | Leave a comment

Large craters shaped by methane blow-outs from the Arctic sea flooring

 Crater in Yamal Peninsula in Siberia A brand new research in Science exhibits that tons of of large, kilometer-vast craters on the ocean flooring within the Arctic have been shaped by substantial methane expulsions. Despite the fact that the craters … Continue reading

Posted in Geology | Tagged , , , , , , , | Leave a comment

Methane seeps within the Canadian excessive Arctic

Widespread methane leakage from the ocean flooring Cretaceous local weather warming led to a big methane launch from the seafloor, indicating potential for comparable destabilization of fuel hydrates underneath trendy international warming. A subject marketing campaign on the distant Ellef … Continue reading

Posted in Geology | Tagged , , , , | Leave a comment

Arctic gives clues on worst mass extinction of life

A fossil of a typical crinoid, showing (from bottom to top) the stem, calyx, and arms with cirri 96 percent of marine species, and 70 percent of terrestrial life died off in the permian-triassic extinction event, as geologists know it. … Continue reading

Posted in Geology | Tagged , , , , , , | Leave a comment

Giant flightless bird wandered the Arctic 50 million years ago

New research confirms there really was a giant, flightless bird with a head the size of a horse’s wandering about in the winter twilight of the high Arctic some 53 million years ago. Paleontology News — ScienceDaily

Posted in Paleontology | Tagged , , , , , , | Leave a comment