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Journal ArticleDOI

Has the Earth’s sixth mass extinction already arrived?

TLDR
Differences between fossil and modern data and the addition of recently available palaeontological information influence understanding of the current extinction crisis, and results confirm that current extinction rates are higher than would be expected from the fossil record.
Abstract
Palaeontologists characterize mass extinctions as times when the Earth loses more than three-quarters of its species in a geologically short interval, as has happened only five times in the past 540 million years or so. Biologists now suggest that a sixth mass extinction may be under way, given the known species losses over the past few centuries and millennia. Here we review how differences between fossil and modern data and the addition of recently available palaeontological information influence our understanding of the current extinction crisis. Our results confirm that current extinction rates are higher than would be expected from the fossil record, highlighting the need for effective conservation measures.

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Food in the Anthropocene: the EAT–Lancet Commission on healthy diets from sustainable food systems

TL;DR: Food in the Anthropocene : the EAT-Lancet Commission on healthy diets from sustainable food systems focuses on meat, fish, vegetables and fruit as sources of protein.
Journal ArticleDOI

Impacts of climate change on the future of biodiversity.

TL;DR: Overall, this review shows that current estimates of future biodiversity are very variable, depending on the method, taxonomic group, biodiversity loss metrics, spatial scales and time periods considered.
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Defaunation in the Anthropocene

TL;DR: Defaunation is both a pervasive component of the planet’s sixth mass extinction and also a major driver of global ecological change.
Journal ArticleDOI

Accelerated modern human-induced species losses: Entering the sixth mass extinction

TL;DR: Estimates of extinction rates reveal an exceptionally rapid loss of biodiversity over the last few centuries, indicating that a sixth mass extinction is already under way and a window of opportunity is rapidly closing.
References
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Journal ArticleDOI

Extraterrestrial Cause for the Cretaceous-Tertiary Extinction

TL;DR: A hypothesis is suggested which accounts for the extinctions and the iridium observations, and the chemical composition of the boundary clay, which is thought to come from the stratospheric dust, is markedly different from that of clay mixed with the Cretaceous and Tertiary limestones, which are chemically similar to each other.
Journal Article

The future of biodiversity

TL;DR: Estimates of future extinctions are hampered by the authors' limited knowledge of which areas are rich in endemics, and regions rich in species found only within them (endemics) dominate the global patterns of extinction.
Journal ArticleDOI

The future of biodiversity.

TL;DR: For example, the authors showed that if all species currently deemed "threatened" become extinct in the next century, then future extinction rates will be 10 times higher than recent rates in well-known, but taxonomically diverse groups from widely different environments.
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