Sixth mass extinction of species: What is really happening?

According to several scientists, Earth is on the brink of a mass extinction of species including flora and fauna, mainly because of the human activity. This is a serious case or is all about propaganda released by the new world order? Which is finally the truth? We are all familiar with the theory of the extinction of the dinosaurs took place 66 million years ago. According to this theory, an asteroid crashed into Earth and led to the extinction of a vast proportion of living beings. On the contrary, few know that another 5 times in the past, life on the planet came very close to extinction.

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