- The planet is undergoing a sixth mass extinction, the sixth time in the history of life on Earth, according to which the global fauna has suffered a serious collapse of numbers.
- Historically, mass extinctions have been caused by catastrophic events such as asteroid collisions. This time, however, the responsibilities of human activities are to blame.
- The main culprits are deforestation, mining and carbon dioxide emissions that cause global warming.
- As a result, insects are dying at record speeds, animal species are experiencing "biological annihilation" and invasive aliens are driving native species to extinction.
The phrase "mass extinction" generally conjures up images of the accident of the asteroids that led to the twilight of the dinosaurs.
At the time of the impact, that 6-mile-wide space rock caused a tsunami in the Atlantic Ocean, along with earthquakes and landslides up and down the current Americas. An impulse of heat ignited the Earth and the Tyrannosaurus rex and its compatriots became extinct, along with 75% of the species on the planet.
Although it may not be obvious, another devastating mass extinction event is occurring today ̵
To learn more: Insects are dying at record speed – a disturbing sign we are in the middle of a 6th mass extinction
A 2017 study found that animal species throughout the world are experiencing a "biological annihilation" and that our current "mass extinction episode has gone beyond most of the hypotheses".
Here are 12 signs that the planet is in the middle of the sixth mass extinction, and because human activity is mainly to blame.