Nuwer writes: "We are in the midst of a mass extinction, many scientists have warned - this one driven not by a catastrophic natural event, but by humans."
A farmer walked through a burned area of Amazon rainforest near Porto Velho, Brazil, last year. (photo: Carl De Souza/AFP/Getty Images)
Mass Extinctions Are Accelerating, Scientists Report
03 June 20
Five hundred species are likely to become extinct over the next two decades, according to a new study.
e are in the midst of a mass extinction, many scientists have warned — this one driven not by a catastrophic natural event, but by humans. The unnatural loss of biodiversity is accelerating, and if it continues, the planet will lose vast ecosystems and the necessities they provide, including fresh water, pollination, and pest and disease control.
On Monday, there was more bad news: We are racing faster and closer toward the point of collapse than scientists previously thought, according to research published in the Proceedings of the National Academy of Sciences. The extinction rate among terrestrial vertebrate species is significantly higher than prior estimates, and the critical window for preventing mass losses will close much sooner than formerly assumed — in 10 to 15 years.
“We’re eroding the capabilities of the planet to maintain human life and life in general,” said Gerardo Ceballos, an ecologist at the National Autonomous University of Mexico and lead author of the new study.
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