We have heard many theories in the past. Prophecies and soothsayers have been proclaiming for long – centuries, actually – that the end is near and be prepared for it.
But what was announced in 2015 by a group of scientists was deemed credible enough to be taken seriously by many.
The bad news was announced by a group of scientists led by the esteemed Paul Ehrlich, the Bing Professor of Population Studies in Biology and a senior fellow at the Stanford Woods Institute for the Environment, Stanford University.
The group used highly conservative estimates to prove that species are disappearing faster than at any time since the dinosaurs’ demise, forcing them – the scientists, that is – to declare that we could have entered what can credibly be labelled as the sixth mass extinction in the history of the planet.
And this time, the results have a direct impact on the well-being and the existence of mankind.
The study, published in the journal Science Advances, showed that even with extremely conservative estimates, species are disappearing up to about 100 times faster than the normal rate between mass extinctions, known as the background rate.
Ehrlich and his co-authors have called for quick action to conserve threatened species, populations and habitat, but have warned that the window of opportunity was rapidly closing.
Though there is a general agreement among scientists that extinction rates have reached levels unparalleledsince the dinosaurs died out 66 million years ago, some have challenged the theory, believing that earlier estimates rested on assumptions that overestimated the crisis.
According to Gerardo Ceballos, of the Universidad Autónoma de México, “If it is allowed to continue, life would take many millions of years to recover, and our species itself would likely disappear early on.”
In support of their study, the scientists have shared the magnitude of irreparable loss to Nature that mankindhas already done. The long list of impacts includes land-clearing for farming, logging, invasive species, carbon emissions that drive climate change and ocean acidification as well as toxins that alter and poison ecosystems.
Now, the spectre of extinction hangs over about 41 per cent of all amphibian species and 26 per cent of all mammals, according to the International Union for Conservation of Nature, which maintains an authoritative list of threatened and extinct species.
The end could, indeed, be here. Be prepared!
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