Runaway warming leading to a hot "supergreenhouse" climate was theorized. Alterbatively a snowpiercer scenario creating a snowball earth.
Or, once billions of people die from climate change, planetary wars will start on the last hospitable areas, leading to the end of humanity.
In contrast, AI ending "humanity" is limited by our own material power, would likely be stoppable, and would not easily reach areas isolated from technology
Or, once billions of people die from climate change, planetary wars will start on the last hospitable areas, leading to the end of humanity.
In contrast, AI ending "humanity" is limited by our own material power, would likely be stoppable, and would not easily reach areas isolated from technology