CrazyNeutrino said:
The Earth has entered a new period of extinction, a study by three US universities has concluded, and humans could be among the first casualties.
One of the new study’s authors said: “We are now entering the sixth great mass extinction event.”
more…
A scary wake up call
LMFAO… look who’s one of the authors >>> Paul R. Ehrlich
here’s a sum up by a responsible & honest expert.
Guest essay by Jim Steele,director emeritus Sierra Nevada Field Campus, San Francisco State University
http://wattsupwiththat.com/2015/06/25/apocalyptic-fear-mongering-sometimes-rush-limbaugh-is-right/
As an ecologist I read several papers a week, looking for pearls of wisdom that would make us better stewards of the environment. But Ceballos and Ehrlich 2015 offered absolutely nothing new and absolutely nothing useful. They simply created a framework that would dramatize their numbers stating, “Our analysis emphasizes that our global society has started to destroy species of other organisms at an accelerating rate, initiating a mass extinction episode unparalleled for 65 million years.” Started to destroy…??? What are we now doing to suddenly promote mass extinctions?
Indeed more species have likely gone extinct in the past 500 years due to habitat loss, overhunting and invasive species than are known to have gone extinct over the past 400 thousand years, despite the extreme climate shifts between the ice age glacials and warm interglacials. But the bulk of those extinctions were the result of past human actions that are now being rectified. At this essay’s conclusion, I added a table for the first 100 of the 140 extinct bird species from the same IUCN database that Ceballos and Ehrlich 2015 used for their paper. Unlike Ceballos and Ehrlich 2015, I included extinction dates and the reason the IUCN has justified their extinction status. Notice that most extinct species inhabited islands where organisms are extremely sensitive to all invasive species. That damage has already been done. So in contrast to claims we are “entering” an era of accelerated mass extinctions, it would be more honest to say humans are now reversing what began 500 years ago.