EthoLiberal Society

What is our greatest existential threat? What events or cause/effect scenarios could lead to the end of humanity's existence on Earth? Outside of the scope of astrological events, think asteroids, solar decay, etc., what human caused events could destroy us as a species? The idea that the greatest existential threat to humanity is human activity has been with us for a while. He's an image and a pity statement from a poster created by Walter Kelly in 1970 for the first Earth