Sentences with phrase «global extinction event»

The asteroid impact that caused a massive global extinction event can be found on the coast of Mexico.

Understanding how communities and ecosystems recovered from the previous five global extinction events sheds light on how extinctions shape broad patterns of biodiversity.

Not exact matches

«This is the strongest evidence from fossils that the main driver of this extinction event was the after - effects of a huge asteroid impact, rather than a slower decline caused by natural changes to the climate or by severe volcanism stressing global environments.»

And it has shown us five previous worldwide extinction events that occurred before the human era, enabling us to ask whether human activity is now causing a sixth global die - off.

Through phylogenetic analysis, the research team discovered that modern deep - sea mussels are the descendants of shallow - water mussels, and their ancestors migrated to the deep sea approximately 110 million years ago, providing evidence to support a hypothesis that their ancestors survived through an extinction event during the global anoxia period associated with the Palaeocene - Eocene Thermal Maximum which occurred around 57 million years ago.

Human evolution is characterised by speciation, extinction and dispersal events that can not currently be explained by global or regional paleoclimate records [1]--[3].

Those rapid global warming events were almost always highly destructive for life, causing mass extinctions such as at the end of the Permian, Triassic, or even mid-Cambrian periods.

Even in the end Cretaceous extinction, in which dinosaurs were finally wiped out by an asteroid impact, a major global - warming extinction event was already underway causing a major extinction within 150,000 years of the impact.

The quantity and concentration of highly varied limestone formations is extraordinary in a global context, whilst the superbly exposed geology provides an insight into the recovery of marine life in the Triassic period, after the greatest extinction event recorded in the history of life on Earth.

Players are invited to fight off alien swarms on Extinction Day, a global community event in Call of Duty:... Read more

Much to our surprise, the best positive predictor of these declines and extinctions was El Niño events, which seem to be increasing with global climate change.

Those abrupt global warming events were almost always highly destructive for life, causing mass extinctions such as at the end of the Permian, Triassic, or even mid-Cambrian periods.

What is more, past global warming has included both minor and mass extinction events (e.g. PETM, Permian - Triassic extinction) so even if current warming is in line with what's repeatedly been experienced in the past, it doesn't follow that either the process of warming or the end result are desireable from the perspective of maintaining an advanced, affluent, complex human society based on creating reliable surpluses of food for 7.5 + billion people.

I see very strong parallels with past global warming events and mass extinctions (Permian, Triassic, Toarcian, Cretaceous OAEs, PETM et al).

They presented arguments against claims that global warming will cause increases in extreme weather events, sea level rise, vector - borne diseases, and species extinction.

Organisms throughout the world, regardless of habitat, suffered similar rates of extinction, suggesting that the cause of the event was a global, not local, occurrence, and that it was a sudden event, not a gradual change.

The forecast does not include pandemics, nuclear war, global warming, extinction level events, etc..

Has the earth been there before, if so, when The five great extinction events (to use your implied global - wide scale.

The largest extinction event to have impacted animals and plants is intimately associated with evidence of global warming.

Back then, a 1,000 ppm CO2 spike induced a 6 C rise in global mean temperature, creating «the most severe marine extinction event [in] 140 million years.»

The Cenozoic Era — encompassing the past 65.5 million years, the time that has elapsed since the mass extinction event marking the end of the Cretaceous Period — has a broad range of climatic variation characterized by alternating intervals of global warming and cooling.

Cataclysm — meaning doomsday extinction event, or mere global calamity?

Vast mixing on a global scale on top of pollution and habitat loss stresses may even lead to a mass extinction event.