Photo: SARAH LAI, AFP / Getty Images
- The planet undergoes a sixth mass extinction, the sixth time in life on earth on earth as a global fauna has experienced a great collapse in numbers.
- Historically, mass extinctions have been caused by catastrophic events such as asteroid collisions. This time human activities are guilty.
- The main sins are deforestation, mining and carbon dioxide emissions, which causes the planet to heat up.
- As a result, insects baptize at record speeds, animal species experience "biological destruction" and invasive aliens drive native species to extinction.
The term "mass extinction" usually calls images of the asteroid crash that led to the dinosaur twilight.
6-mile spacecraft caused a tsunami in the Atlantic, along with earthquakes and landslides up and down what is now America. A heat pulse baked the earth, and Tyrannosaurus rex and its compatriots died together with 75% of the world's species.
Although it may not be obvious, another devastating mass extermination event today – the sixth of its kind in the earth's history. The trend is to hit global fauna on several fronts, as hotter seas, deforestation and climate change drive animal populations to extinction in unprecedented numbers.
Read more: Insects die at record frequencies – an unfortunate sign we are in the midst of a 6th mass extinction
A 2017 study showed that animal species around the world experience a "Biological Holocaust" and that our current "mass extermination episode has gone beyond most assumption."
Here are 12 signs that the planet is in the midst of the sixth mass extinction, and why human activity is primarily guilty.
Insects die at record frequencies.
Hillary Kladke / Getty Images
A 2019 study showed that the total mass of all insects on the planet decreases by 2.5% per year.
] If this trend continues unchanged, the Earth cannot have any insects at all in 2119.
"In 10 years you will have a quarter, just 50, half left, and in 100 years you will have no "Francisco Sánchez-Bayo, co-author of the study, told The Guardian.
It is a major problem, as insects such as bees, butterflies and other pollinators play a crucial role in fruit, vegetables and nut production. In addition, bugs are food sources for many bird, fish and mammal species – some of which people rely on food.
Soil seems to be running a process of "biological destruction". As much as half of the total number of individuals who once shared the land with humans is already gone.
Michael Kinnaman / Getty Images
A 2017 study looked at all animal populations worldwide (not just insects) by examining 27,600 vertebrate species – about half of the total sum we know exists. They found that more than 30% of them are in decline.
Some species face total collapse, while some local populations of others are extinct in specific areas. It is still the cause of alarms, because the study authors said these localized extinctions of the population are a "persecution for extinction of species".
So even animal populations that are not yet categorized as threatened are reducing an uneasy sign.
DigitalART / Wikimedia Commons
According to the International Union for the Conservation of Nature Red List, 27.5% of the world's species exceed extinction, and it is expected to continue. of all assessed species on the planet are threatened with extinction. Currently, 40% of the planet's amphibians are threatened, 25% of its mammals and 33% of its coral reefs.
IUCN predicts that 99.9% of endangered species and 67% of endangered species will get lost within the next 100 years.
See the rest of the story at Business Insider
SEE ALSO: Researchers say we are witnessing the planet's sixth mass extinction – and "biological destruction" is the latest sign