Paleoclimatology News

Arctic: Past Century May Be Warmest in Last 120,000 Years

Central Baffin Island. Image credit: Gifford Miller / University of Colorado Boulder.
Oct 24, 2013 by News Staff

Radiocarbon dating of ancient moss clumps on Baffin Island in the Eastern Canadian Arctic suggests that local summer temperatures during the past 100 years were higher than during any century in the past 44,000 years and perhaps as long ago as 120,000 years. Central Baffin Island. Image credit: Gifford Miller / University of Colorado Boulder. Prof Gifford Miller from the University of Colorado at Boulder, who is the lead author of a paper published...

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This image shows Irharhar, Sahabi and Kufrah rivers systems in the Sahara region. The green points show the location of archaeological sites in the region. Image credit: Coulthard TJ et al.

Three Ancient Rivers Existed in Sahara 100,000 Years Ago

Sep 17, 2013 by Enrico de Lazaro

Simulating paleoclimates in the Sahara region, a team of researchers from Germany and United Kingdom has found evidence of three major river systems that...

New research shows Antarctic warming began two - four millennia earlier than previously thought. Credit: DUJS.

West Antarctica Warming Began 2,000 Years Earlier Than Thought, Linked to Changes in Earth Orbit

Aug 15, 2013 by News Staff

According to a large multinational team of researchers, West Antarctica began emerging from the last Ice Age about 20,000 to 22,000 years ago, well before...

Cape Washington, Antarctica (© University of California San Diego’s Scripps Institution of Oceanography)

Study Provides Evidence for Several Global Warmings During Pliocene

Jul 22, 2013 by News Staff

According to researchers reporting in the journal Nature Geoscience, global warmings between 5 – 3 million years ago may have caused parts of the...

Quartz crystals (Didier Descouens / CC BY-SA 3.0)

Scientists: Water in Australian Quartz Holds Key to First Ice Age on Earth

Jun 6, 2013 by News Staff

According to research led by Dr Magali Pujol from the University of Lorraine in France, bubbles of water found in Archaean hydrothermal quartz in Australia...

This image shows global surface air temperature anomalies four million years ago (A. V. Fedorov et al)

Climate Models Challenged as Scientists Identify Ancient Pool of Warm Water

Apr 12, 2013 by News Staff

A giant mass of warm water that stretched out from Indonesia over to Africa and South America about 4 million years ago suggests current climate models...

Chicxulub Asteroid May Have Caused Global Firestorm 66M Years Ago

Mar 28, 2013 by News Staff

Chicxulub, an asteroid that collided with the Earth 66 million years ago and is believed to wipe out the dinosaurs, may have triggered a global firestorm...

Study Pushes Opening of Land Bridge to Alaska Back 2,000 Years

Jun 29, 2012 by Sergio Prostak

A new study of lake sediment cores from Sanak Island in the western Gulf of Alaska has suggested that deglaciation there from the last Ice Age took place...

Mid-Miocene Warming Greened Antarctica

Jun 25, 2012 by News Staff

A team of US researchers, including NASA scientists, has found that ancient Antarctica was much warmer and wetter than previously suspected. This artist's...

New Evidence of Extraterrestrial Impact

Jun 12, 2012 by Enrico de Lazaro

An international team of researchers has discovered melt-glass material in a thin layer of sedimentary rock in Pennsylvania, South Carolina, and Syria....

Earth Needs 10 Million Years to Recover from Mass Extinction

May 28, 2012 by News Staff

A new study has revealed that it took about 10 million years for Earth to recover from the greatest mass extinction of all time. End-Permian Earth (Christine...

Study Links Carbon Dioxide to Global Warming During Last Ice Age

Apr 6, 2012 by James Freeman

A team of scientists has established a clear cause-and-effect relationship between rising levels of carbon dioxide and global warming that ended the last...

Study Suggests First Plants Caused Series of Ice Ages

Feb 1, 2012 by News Staff

A team of UK researchers has revealed how the arrival of the first plants 470 million years ago triggered a series of ice ages. The moss Physcomitrella...

Mercury May Have Caused End-Permian Mass Extinction

Jan 6, 2012 by Enrico de Lazaro

For the first time, Canadian researchers have suggested that the Earth’s most severe mass extinction was caused by an influx of mercury into the eco-system. In...

Early Earth’s Atmosphere was Similar to Present-Day One

Nov 30, 2011 by News Staff

Scientists from Rensselaer Polytechnic Institute have found that the atmosphere of Earth just 500 million years after its creation was not a methane-filled...

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