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Evidence found in caves in Laos helps tell a story about a connection between the end of the Green Sahara, when heavily vegetated Northern Africa became a hyper-arid landscape, and a previou...
A natural global warming event that took place 56 million years ago was triggered almost entirely by volcanic eruptions that occurred as Greenland separated from Europe during the opening of the North...
Rainfall patterns in the Sahara during the 6,000-year "Green Sahara" period have been pinpointed by analyzing marine sediments, according to new research led by a UA geoscientist.What is now the Sahar...
The last time Earth experienced both ice sheets and carbon dioxide levels within the range predicted for this century was a period of major sea level rise, melting ice sheets and upheaval of tropical ...
A new study of sharks that lived in warm Arctic waters millions of years ago suggests that some shark species could handle the falling Arctic salinity that may come with rising temperatures.
The abrupt climate change of wetness in China from 2100 BC to 1800 BC is examined according to historical documentations, archaeological evidences and palaeo-climatic proxy data. The results show that...
SHISHMAREF, Alaska—Over the past 10 years, while much of the United States has debated the potential threat of global climate change, nearly 600 residents of this remote island village have seen its e...

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