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Categories: Geoscience: Severe Weather, Paleontology: Fossils

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Biology: Biochemistry Ecology: Trees Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather Paleontology: Climate
Published

600 years of tree rings reveal climate risks in California      (via sciencedaily.com)     Original source 

The San Joaquin Valley in California has experienced vast variability in climate extremes, with droughts and floods that were more severe and lasted longer than what has been seen in the modern record, according to a new study of 600 years of tree rings from the valley.

Environmental: General Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology Geoscience: Geomagnetic Storms Geoscience: Severe Weather Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
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Solar activity likely to peak next year      (via sciencedaily.com)     Original source 

Researchers have discovered a new relationship between the Sun's magnetic field and its sunspot cycle, that can help predict when the peak in solar activity will occur. Their work indicates that the maximum intensity of solar cycle 25, the ongoing sunspot cycle, is imminent and likely to occur within a year.

Biology: Marine Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather
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Giant sea salt aerosols play major role in Hawai'i's coastal clouds, rain      (via sciencedaily.com)     Original source 

A new study from atmospheric scientists revealed that the coastline can produce up to five times the concentration of giant sea salt aerosols compared to the open ocean and that coastal clouds may contain more of these particles than clouds over the open ocean -- affecting cloud formation and rain around the Hawaiian Islands. 

Environmental: General Geoscience: Environmental Issues Geoscience: Severe Weather
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A fifth higher: Tropical cyclones substantially raise the Social Cost of Carbon      (via sciencedaily.com)     Original source 

Extreme events like tropical cyclones have immediate impacts, but also long-term implications for societies. A new study now finds: Accounting for the long-term impacts of these storms raises the global Social Cost of Carbon by more than 20 percent, compared to the estimates currently used for policy evaluations. This increase is mainly driven by the projected rise of tropical-cyclone damages to the major economies of India, USA, China, Taiwan, and Japan under global warming.

Archaeology: General Biology: General Biology: Zoology Environmental: Ecosystems Paleontology: Fossils
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Curators and cavers: How a tip from a citizen scientist led to deep discoveries in Utah's caves      (via sciencedaily.com)     Original source 

Scientists and colleagues from Utah's caving community have published the first research from their collaborative fieldwork effort deep in Utah's caves. The journal's feature article reveals why caves make such compelling research archives; what was uncovered in Boomerang Cave in northern Utah; why skeletal remains provide new access to hard-to-get data from the recent past; and offers a new zoological baseline for mammalian changes in an alpine community.  

Biology: General Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Trilobites rise from the ashes to reveal ancient map      (via sciencedaily.com)     Original source 

Ten newly discovered species of trilobites, hidden for 490 million years in a little-studied part of Thailand, could be the missing pieces in an intricate puzzle of ancient world geography.

Anthropology: Early Humans Anthropology: General Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Microbiology Ecology: Nature Ecology: Trees Paleontology: Fossils
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Looking for 'LUCA' and the timing of cellular evolution      (via sciencedaily.com)     Original source 

LUCA, the 'last universal common ancestor' of all living organisms, lived 4.32 to at most 4.52 billion years ago. What LUCA looked like is unknown, but it must have been a cell with among others ribosomal proteins and an ATP synthase.

Engineering: Robotics Research Geoscience: Geography Geoscience: Severe Weather Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology
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AI finds formula on how to predict monster waves      (via sciencedaily.com)     Original source 

Using 700 years' worth of wave data from more than a billion waves, scientists have used artificial intelligence to find a formula for how to predict the occurrence of these maritime monsters. Long considered myth, freakishly large rogue waves are very real and can split apart ships and even damage oil rigs.

Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Geology Geoscience: Oceanography Geoscience: Severe Weather Paleontology: Climate Paleontology: General
Published

Deep dive on sea level rise: New modelling gives better predictions on Antarctic ice sheet melt      (via sciencedaily.com)     Original source 

Using historical records from around Australia, an international team of researchers have put forward the most accurate prediction to date of past Antarctic ice sheet melt, providing a more realistic forecast of future sea level rise.   The Antarctic ice sheet is the largest block of ice on earth, containing over 30 million cubic kilometers of water.   Hence, its melting could have a devasting impact on future sea levels. To find out just how big that impact might be, the research team turned to the past.  

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Animals Ecology: General Ecology: Research Geoscience: Severe Weather
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Idai vs. Impalas: New study shows in real-time what helps mammals survive a natural disaster      (via sciencedaily.com)     Original source 

After a massive cyclone transformed the ecosystem of Gorongosa National Park, researchers studied the immediate and knock-on impacts to garner lessons for wildlife managers around the world.

Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Extinction Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
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Like the phoenix, Australia's giant birds of prey rise again from limestone caves      (via sciencedaily.com)     Original source 

Australia's only vulture, and a fearsome extinct eagle, are among the earliest recorded birds of prey from the Pleistocene period more than 50,000 years ago -- and now researchers are bringing them to 'life' again.    Along with new scientific information, a bold new pictorial reconstruction of a newly named eagle and the only known Australian vulture will be unveiled at the World Heritage-listed Naracoorte Caves in South Australia's Limestone Coast this month.  

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Paleontology: Fossils
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Research in Lake Superior reveals how sulfur might have cycled in Earth's ancient oceans      (via sciencedaily.com)     Original source 

A scientists has sulfur on her mind. The yellow element is a vital macronutrient, and she's trying to understand how it cycles through the environment. Specifically, she's curious about the sulfur cycle in Earth's ancient ocean, some 3 billion years ago.

Biology: Zoology Ecology: Animals Ecology: Nature Geoscience: Severe Weather
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Temperature variability reduces nesting success      (via sciencedaily.com)     Original source 

Many songbirds are nesting earlier in spring because of warmer temperatures brought about by climate change. But the shift brings another danger that is especially deadly for nestlings: greater exposure to temperature variability in the form of cold snaps and heat waves. 

Anthropology: Cultures Archaeology: General Paleontology: Fossils
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Radiocarbon dating meets Egyptology and Biblical accounts in the city of Gezer      (via sciencedaily.com)     Original source 

New dates provide detailed insights into the timing of events in the ancient city of Gezer, according to a new study.

Biology: Zoology Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
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Birds set foot near South Pole in Early Cretaceous, Australian tracks show      (via sciencedaily.com)     Original source 

The discovery of 27 avian footprints on the southern Australia coast -- dating back to the Early Cretaceous when Australia was still connected to Antarctica -- opens another window onto early avian evolution and possible migratory behavior.

Biology: Botany Biology: General Biology: Microbiology Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Research Paleontology: Climate Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
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Plants that survived dinosaur extinction pulled nitrogen from air      (via sciencedaily.com)     Original source 

Ancient cycad lineages that survived the extinction of the dinosaurs may have done so by relying on symbiotic bacteria in their roots to fix atmospheric nitrogen. The finding came from an effort to understand ancient atmospheres, but became an insight into plant evolution instead.

Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Severe Weather
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Not so silver lining: Microplastics found in clouds could affect the weather      (via sciencedaily.com)     Original source 

From the depths of the seas to snow on mountains and even the air above cities, microplastics are turning up increasingly often. Now, researchers have analyzed microplastics in clouds above mountains. They suggest that these tiny particles could play a role in cloud formation and, in turn, affect weather.

Environmental: Ecosystems Geoscience: Environmental Issues Paleontology: Fossils
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Europe was not covered by dense forest before the arrival of modern humans      (via sciencedaily.com)     Original source 

For decades, we believed that outside ice ages Europe was mostly covered by dense forest before the arrival of modern humans. Now, a new study shows that there was far more open and semi-open vegetation than conventionally expected.