Archaeologists conducting a study of the Muralla La Cumbre, a 10 km wall in northern Peru, have concluded that the Chimú Culture constructed the wall to protect the capital of Chan Chan against El Niño events.
Recently discovered evidence supporting the existence of ancient lakes in remarkably dry areas of South Africa indicates that Stone Age humans may have inhabited a more extensive range across the continent than initially believed.
An international team of researchers headed by scientists from the Alfred Wegener Institute has gained new insights into the carbon dioxide exchange between ocean and atmosphere, thus making a significant contribution to solving one of the great scientific mysteries of the ice ages.
The idea that the young Earth had a thicker atmosphere turns out to be wrong. New research from the University of Washington uses bubbles trapped in 2.7 billion-year-old rocks to show that air at that time exerted at most half the pressure of today's atmosphere.
An international team of scientists led by the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) have managed to open a new window into the climate history of the Arctic Ocean. Using unique sediment samples from the Lomonosov Ridge, the researchers found that six to ten million years ago the central Arctic was completely ice-free during summer and sea-surface temperature reached values of 4 to 9 degrees Celsius.
Climate is not constant on Earth. Consider ice ages coming and going as an example. Parallel to ice age cycles, atmospheric carbon dioxide reduces during glacial periods and increases during warmer times, although modern fossil fuel-related carbon dioxide emission broke this natural cyclicity. With the proper proxy measurements, scientists can look into these past cycles to determine how exactly climate systems were naturally governed.
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Researchers from the University of North Carolina Wilmington (UNCW) are using side-scan sonar and positioning systems to find evidence of rice cultivation and slavery beneath the depths of North Carolina’s lower Cape Fear and Brunswick rivers.
Throughout the history of the Roman Empire, countless legions were raised and disbanded, but one legion endured the entirety, remaining in service to the Roman Empire and the Byzantine Empire, and marching on into the Middle Ages - The Legio V Macedonica.