https://www.vox.com/future-perfect/2018/10/18/17957162/nuclear-war-asteroid-volcano-science-climate-change

https://www.discovermagazine.com/planet-earth/20-ways-the-world-could-end

https://www.science.org/content/article/here-s-how-world-could-end-and-what-we-can-do-about-it

https://www.usatoday.com/story/tech/2017/09/22/world-definitely-going-end-just-probably-not-saturday/689803001/