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Human extinction is the end of the human species. Various scenarios have been discussed in science, popular culture, and religion (see End time). The scope of this article is existential risks. Humans are very widespread on the Earth, and live in communities which (whilst interconnected) are capable of some kind of basic survival in isolation. Therefore, pandemic and deliberate killing aside, to achieve human extinction, the entire planet would have to be rendered uninhabitable, with no opportunity provided or possible for humans to establish a foothold beyond earth. This would typically be during a mass extinction event, a precedent of which exists in the Permian–Triassic extinction event among other examples. basic survival in isolation. Therefore, pandemic and deliberate killing aside, to achieve human extinction, the entire planet would have to be rendered uninhabitable, with no opportunity provided or possible for humans to establish a foothold beyond earth. This would typically be during a mass extinction event due to

Environmental collapses

Loss of a breathable atmosphere, for example due to an anoxic event.
Occurrence of a large-scale volcanism, possibly a supervolcano (250 million years ago, after the Permian-Triassic extinction event life on land took 30 million years to recover).
Extreme ice age leading to Snowball Earth. An ice age can be a result of a nuclear winter.
Loss of natural resources, such as mass deforestation or contamination of all fresh water.
Now question is how to be alter & ...............