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Study correlates climate change and early human activities at the Algerian...

Mohamed Sahnouni, coordinator of the Prehistoric Technology Program at the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), leads a study, published online...

Oman’s mountains may hold clues for reversing climate change

Deep in the jagged red mountains of Oman, geologists are drilling in search of the holy grail of reversing climate change: an efficient and...

Stalagmites store paleoclimate data

The North Atlantic Oscillation (NAO) is the dominant atmospheric pressure mode over the North Atlantic that plays a significant role in determining the winter...

Future carbon dioxide, climate warming potentially unprecedented in 420 million years

New research led by the University of Southampton suggests that, over the next 100 to 200 years, carbon dioxide concentrations in Earth's atmosphere will...

Last remnant of North American ice sheet on track to vanish

The last piece of the ice sheet that once blanketed much of North America is doomed to disappear in the next several centuries, says...

Ice age thermostat prevented extreme climate cooling

During the ice ages, an unidentified regulatory mechanism prevented atmospheric CO2 concentrations from falling below a level that could have led to runaway cooling,...

Early Earth had a hazy, methane-filled atmosphere

More than 2.4 billion years ago, Earth's atmosphere was inhospitable, filled with toxic gases that drove wildly fluctuating surface temperatures. Understanding how today's world...

Rapid decline of Arctic sea ice a combination of climate change...

Arctic sea ice in recent decades has declined even faster than predicted by most models of climate change. Many scientists have suspected that the...

Study opens new questions on how the atmosphere and oceans formed

A new study led by The Australian National University (ANU) has found seawater cycles throughout Earth's interior down to 2,900km, much deeper than previously...

Climate change responsible for the great diversity in horses

Changing environments and ecosystems were driving the evolution of horses over the past 20 million years. This is the main conclusion of a new...

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