Acharya Prashant explains that humanity is currently facing a catastrophe worse than a world war, having entered the sixth mass extinction phase. He highlights that carbon dioxide is the primary driver of this crisis, noting that current levels are the highest seen in a million years. He points out that while people in cities may not perceive immediate changes, sensitive ecosystems like the Himalayas are already showing fatal signs, such as receding glaciers. He warns that even a small increase in average global temperatures can lead to the extinction of nearly all life on the planet, making it uninhabitable for all species.