Uploaded on Jun 10, 2020
PPT on All about 6th Mass Extinction.
All about 6th Mass Extinction.
All about 6th Mass Extinction
Sixth mass extinction
• The Holocene extinction, otherwise referred to as the sixth
mass extinction or Anthropocene extinction, is an ongoing
extinction event of species during the present Holocene or
Anthropocene epoch, as a result of human activity.
Source: Google Images
Massive extinction
• The included extinctions span numerous families of plants and
animals, including mammals, birds, amphibians, reptiles and
arthropods, with widespread degradation of highly biodiverse
habitats such as coral reefs and rainforests.
Source: Google Images
Currently under way
• A “biological annihilation” of wildlife in recent decades means a
sixth mass extinction in Earth’s history is under way and is
more severe than previously feared, according to research.
Scientists analysed both common and rare species and found
billions of regional or local populations have been lost
Source: Google Images
Who is to be blamed?
• They blame human overpopulation and overconsumption for
the crisis and warn that it threatens the survival of human
civilization, with just a short window of time in which to act. It is
a frightening assault on the foundations of human civilization
Source: Google Images
Millions of species lost
• The scientists found that a third of the thousands of
species losing populations are not currently considered
endangered and that up to 50% of all individual animals
have been lost in recent decades.
Source: Google Images
Extinction progress way beyond
• The scientists found billions of populations of mammals,
birds, reptiles and amphibians have been lost all over the
planet, leading them to say a sixth mass extinction has
already progressed further than was thought.
Source: Google Images
Humans are responsible
• Wildlife is dying out due to habitat destruction, overhunting,
toxic pollution, invasion by alien species and climate
change. But the ultimate cause of all of these factors is
human overpopulation and continued population growth
Source: Google Images
Overconsumption
• Overconsumption, especially by the rich, is one of the main
causes. The serious warning needs to be heeded because
civilisation depends utterly on the plants, animals and
organisms of Earth that supply it with essential ecosystem
services
Source: Google Images
What can be done?
• The time to act is very short. It will, sadly, take a long time to
humanely begin the population shrinkage required if civilisation
is to long survive, but much could be done on the consumption
front and with wildlife reserves, diversity protection laws, in the
meantime.
Source: Google Images
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