An upward trend in fossilized charcoal indicates that wildfires may have contributed to extinctions during the Great Dying.
extinctions
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Without Deep Emissions Cuts, Marine Species Face Mass Extinction
On the basis of how much oxygen marine species need and how much is available, researchers predict extinctions comparable to those at the end of the Permian under a business-as-usual emissions scenario.
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Un nuevo modelo para un antiguo evento de extinción
Un modelo 3D del sistema Tierra incorpora variables como la temperatura y la sulfurización para aclarar el evento de extinción de finales del Pérmico.
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A New Model for an Old Extinction Event
A 3D Earth system model incorporates variables such as temperature and sulfurization to shed light on the end-Permian extinction event.
Posted inEditors' Highlights
What Conditions Accompanied the Late Ordovician Mass Extinction?
The second-largest mass extinction in Earth’s history took place in a period of stresses from non-sulfidic anoxia in shelf areas, together with glacioeustatic sea-level change and climatic cooling.
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Mammoths Lost Their Steppe Habitat to Climate Change
Ancient plant and animal DNA buried in Arctic sediments preserve a 50,000-year history of Arctic ecosystems, suggesting that climate change contributed to mammoth extinction.
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A Little-Known Mass Extinction and the “Dawn of the Modern World”
Volcanic eruptions in what is now western Canada may have triggered a million years of rain and a mass extinction that launched the reign of the dinosaurs.
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Did Ozone Loss Cause the End Devonian Mass Extinction?
Ozone loss, perhaps as a consequence of a warming climate, may have been responsible for a catastrophic loss of biodiversity.
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Congress Hears Biodiversity Warning During a Charged Hearing
At a testy congressional hearing, leading experts confronted attacks on the science.
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Extinct Megatoothed Shark May Have Been Warm-Blooded
Preliminary results from a recent study may begin to shed light on why megalodons died out before the most recent ice age.