For years now, there have been some studies done that have claimed we are either getting very close to being considered a mass extinction period, or are already in one. These studies have not been definitive, but they have been leading to many storm clouds in the ecological community about just how bad things are getting.
We all know how many people love to deny climate change science, because there are abstractions in the process that allow them to muddy the reality and interpret things in demonstrably false ways but which convince a lot of people.
How dare mankind have such hubris to declare they are responsible for such monumental change, after all!
Well about that
Extensive study led by experts at Stanford University, Princeton University and the University of California, Berkeley.
Here is a layman's break down at Live Science.
And the reason?
We can count the losses. Actual, real species gone forever at 114x the background rate.
We all know how many people love to deny climate change science, because there are abstractions in the process that allow them to muddy the reality and interpret things in demonstrably false ways but which convince a lot of people.
How dare mankind have such hubris to declare they are responsible for such monumental change, after all!
Well about that
The oft-repeated claim that Earth’s biota is entering a sixth “mass extinction” depends on clearly demonstrating that current extinction rates are far above the “background” rates prevailing in the five previous mass extinctions. Earlier estimates of extinction rates have been criticized for using assumptions that might overestimate the severity of the extinction crisis. We assess, using extremely conservative assumptions, whether human activities are causing a mass extinction. First, we use a recent estimate of a background rate of 2 mammal extinctions per 10,000 species per 100 years (that is, 2 E/MSY), which is twice as high as widely used previous estimates.
We then compare this rate with the current rate of mammal and vertebrate extinctions. The latter is conservatively low because listing a species as extinct requires meeting stringent criteria. Even under our assumptions, which would tend to minimize evidence of an incipient mass extinction, the average rate of vertebrate species loss over the last century is up to 114 times higher than the background rate. Under the 2 E/MSY background rate, the number of species that have gone extinct in the last century would have taken, depending on the vertebrate taxon, between 800 and 10,000 years to disappear.
These estimates reveal an exceptionally rapid loss of biodiversity over the last few centuries, indicating that a sixth mass extinction is already under way. Averting a dramatic decay of biodiversity and the subsequent loss of ecosystem services is still possible through intensified conservation efforts, but that window of opportunity is rapidly closing.
Extensive study led by experts at Stanford University, Princeton University and the University of California, Berkeley.
Here is a layman's break down at Live Science.
And the reason?
Much of the extinction is due to human activities that lead to pollution, habitat loss, the introduction of invasive species and increased carbon emissions that drive climate change and ocean acidification, the researchers said.
We can count the losses. Actual, real species gone forever at 114x the background rate.