Acharya Prashant explains that humanity is currently facing a catastrophe worse than a world war, having entered the sixth mass extinction phase primarily due to carbon dioxide emissions. He notes that while people in cities like Mumbai may not perceive the immediate effects of climate change as clearly as those in sensitive ecosystems like the Himalayas, the crisis is subliminal and fatal. He emphasizes that even a small increase in average global temperatures can lead to the extinction of 80 to 90% of all life on the planet. The lack of immediate physical sensation leads to a dangerous state of denial, which prevents necessary action.