climate security no relation extinction event
A climate apocalypse (also called a climate dystopia and a climate-induced collapse, among other names) generally denotes a predicted scenario involving the global collapse of human civilization and potential human extinction as either a direct or indirect result of anthropogenic climate change. Many academics and researchers  posit that in actuality, unless a major course correction is imminently implemented, some or all of the Earth will be rendered uninhabitable as a result of extreme temperatures, severe weather events, an inability to grow crops, and an altered composition of the Earth's atmosphere.Many scientists have repeatedly warned about severe risks up to the level of what may described as "climate apocalypse". For example, in September 2021 more than 200 scholarly medical journals published an emergency call for action, saying that a temperature increase of 1.5 degrees would bring catastrophic harm to global health from which the world will never recover.Climate apocalypse scenarios are explored in multiple science fiction works, in particular in climate fiction including The Parable of the Sower by Octavia Butler, which depicts ecological breakdown through societal collapse; American War by Omar El Akkad, which explores the idea of an underwater, war-stricken country; or The Word for World is Forest by Ursula Le Guin that engages in space colonization to escape the conditions of Earth.
In academia, fields that investigate such risks include systems theory and climate security where the latter refers to research and development relating to national and international security risks induced, directly or indirectly, by changes in climate patterns. Sometimes, worst-case scenarios are used to highlight the importance of improved efforts in climate change mitigation or in calls for declarations of climate emergency in order to enable such.
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