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The lack of oxygen-producing plants will cause free oxygen in the atmosphere to disappear, making animal life impossible. [212] 1–5 billion Various The estimated end of the Sun's current phase of development, after which it will swell into a red giant, either scorching or swallowing Earth, will occur around five billion years from now ...
The impact of these scenarios can vary widely, depending on the cause and the severity of the event, ranging from temporary economic disruption to human extinction. Many societal collapses have already happened throughout human history.
Climate apocalypse – Term to describe possible catastrophic events due to climate change; Climate Clock – Public countdown of time until 1.5°C of global warming; DEFCON – Alert posture used by the United States Armed Forces; Doomsday device – Construct which could destroy all life on a planet or a planet itself
Mushroom cloud from the 1954 explosion of Castle Bravo, the largest nuclear weapon detonated by the U.S.. A nuclear holocaust, also known as a nuclear apocalypse, nuclear annihilation, nuclear armageddon, or atomic holocaust, is a theoretical scenario where the mass detonation of nuclear weapons causes widespread destruction and radioactive fallout, with global consequences.
The CDC does offer zombie apocalypse preparedness tips on its site, however, those tips were created so that people can learn about real emergency preparedness in an engaging way.
An event that could cause human extinction or permanently and drastically curtail humanity's existence or potential is known as an "existential risk". [ 4 ] In the 21st century, a number of academic and non-profit organizations have been established to research global catastrophic and existential risks, formulate potential mitigation measures ...
Many have joked about 2020 ushering in the end of times based on how the year has unfolded. Recent photos and videos emerging from Russia had some suggesting that a frozen apocalypse might already ...
Recent photos and videos emerging from Russia had some suggesting that a frozen apocalypse might already be underway. A storm of freezing rain and gusty winds spewed an inch of frozen ...