New paleoclimate evidence shows that around 1.1 million years ago, the southern European climate cooled significantly and caused an extinction of archaic humans on the continent. The post Extre...
Glacial cycles during the early Pleistocene epoch are characterized by a dominant 41,000-year periodicity and amplitudes smaller than those of glacial cycles with 100,000-year periodicity during ...
https://www.sci.news/othersciences/climatology/early-pleistocene-glacial-cycles-11918.html
Scientists have reconstructed changes in summer and winter rainfall from trace elements and isotopes of a stalagmite from Dharamjali Cave in the Himalaya spanning 4,200-3,100 years ago. The pos...
The first records of Greenland Vikings date to 985 CE. Archaeological evidence yields insight into how they lived, yet drivers of their disappearance in the 15th century remain enigmatic. The p...
https://www.sci.news/archaeology/greenland-viking-abandonment-11837.html
Archaeologists from the University of Cape Town and elsewhere identified and described relict tufas at the site of Ga-Mohana Hill in the southern Kalahari, South Africa. The post Ancient Humans...
Declining temperature has been thought to explain the abandonment of Norse settlements in southern Greenland in the early 15th century CE, although limited evidence is available from the inner se...
https://www.sci.news/archaeology/norse-abandonment-greenland-10646.html
One or more volcanic eruptions preceded the majority (62 of 68) of dynastic collapses in China over the past 2,000 years, according to new research led by Zhejiang University and Trinity College ...
https://www.sci.news/archaeology/volcanic-eruptions-collapse-ancient-chinese-dynasties-10265.html
The distant past of Earth and potentially its future include extremely warm ‘hothouse’ climate states, but little is known about how the atmosphere of our planet behaves in such states. “If...
https://www.sci.news/othersciences/paleoclimatology/ancient-hothouse-earth-10240.html
New research shows that mean annual temperatures in southeast Australia gradually declined from 27 degrees Celsius during the Middle Eocene epoch to 22-24 degrees Celsius during the Late Eocene...
Paleoclimatologists have precisely reconstructed monthly sea surface temperatures at around 50 °N latitude from fossil shells of bivalve mollusks that lived during the Campanian (Late Cretaceous...
https://www.sci.news/paleontology/cretaceous-dinosaurs-warm-variable-greenhouse-climate-09751.html
Oxygen levels fluctuated dramatically for about 200 million years after the start of the Great Oxidation Event, with permanent atmospheric oxygenation finally arriving about 2.22 billion years ag...
The Aral Sea basin in Central Asia and its major rivers, the Amu Darya and Syr Darya, were the center of advanced river civilizations, and a principal hub of the Silk Roads over a period of more ...
https://www.sci.news/archaeology/climate-change-central-asias-river-civilizations-09164.html
Obesity is rare in hunter-gatherer cultures. Nevertheless, dozens of handheld ‘Venus’ figurines — the oldest art sculptures of humans known and tend to be of women who have obesity or are p...
At least six different species of the genus Homo — H. habilis, H. ergaster, H. erectus, H. heidelbergensis, H. neanderthalensis, and H. sapiens — populated the world during the latest Pliocen...
https://www.sci.news/othersciences/anthropology/climate-change-early-human-species-08961.html
The Little Ice Age, a period of global cooling that lasted from the early 14th century to the mid-19th century, was triggered by an exceptionally large outflow of sea ice from the Arctic Ocean in...
https://www.sci.news/othersciences/paleoclimatology/little-ice-age-08865.html
The end-Cretaceous mass extinction 66 million years ago eradicated roughly 75% of the animal and plant species on Earth, including whole groups like non-avian dinosaurs and ammonites. Debate ling...
https://www.sci.news/paleontology/chicxulub-asteroid-end-cretaceous-mass-extinction-08594.html
An international team of paleontologists and geologists has uncovered well-preserved fossilized roots, pollen and spores of 90-million-year-old (mid-Cretaceous period) rainforest trees in West An...
https://www.sci.news/paleontology/mid-cretaceous-rainforest-antarctica-08293.html
Ancient Australia’s super-sized animals, the megafauna, became extinct about 42,000 years ago, but the role of humans in their demise has been debated for decades. New research challenges the n...
https://www.sci.news/paleontology/humans-climate-change-australian-megafauna-extinction-07861.html
Climate-related megadroughts built the foundation for the collapse of the Neo-Assyrian Empire (912 to 609 BCE), the largest and most powerful empire of its time, a new study published in the jour...
https://www.sci.news/archaeology/megadroughts-fall-neo-assyrian-empire-07805.html
There’s always a lot of extraterrestrial dust floating down to Earth, but this dust is normally only a tiny fraction of the other dust in our atmosphere such as volcanic ash, dust from deserts ...
https://www.sci.news/space/asteroid-dust-mid-ordovician-ice-age-07608.html