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Population bottleneck followed by recovery or extinction. A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts; or human activities such as genocide, speciocide, widespread violence or intentional culling.
Nuclear war is an often-predicted cause of the extinction of humankind. [1]Human extinction or omnicide is the hypothetical end of the human species, either by population decline due to extraneous natural causes, such as an asteroid impact or large-scale volcanism, or via anthropogenic destruction (self-extinction), for example by sub-replacement fertility.
A global catastrophic risk or a doomsday scenario is a hypothetical event that could damage human well-being on a global scale, [2] even endangering or destroying modern civilization. [3] An event that could cause human extinction or permanently and drastically curtail humanity's existence or potential is known as an " existential risk ".
Doing her own end-of-life planning with human composting has given her a sense of peace. “This is something that moves me,” Cooley-Reyes told CNN. “I am going back into the earth, and I will ...
Diets, not just in terms of obesity but also of food composition, can have a major impact on underlying factors (see also #Aging below), with reviews suggesting i.a. that a 20-years old male in Europe who switches to the "optimal diet" could gain a mean of ~13.7 years of life and a 60-years old female in the U.S. switching to the "optimal diet ...
Biologist E. O. Wilson estimated [15] in 2002 that if current rates of human destruction of the biosphere continue, one-half of all plant and animal species of life on earth will be extinct in 100 years. [70]
The ideals taught at Parris Island “are the best of what human beings can do,” said William P. Nash, a retired Navy psychiatrist who deployed with Marines to Iraq as a combat therapist. “It’s these values that give you some chance of doing something good in a war, and limiting collateral damage, however right or wrong” the war itself is.
The World Bank has regularly failed to live up to its own policies for protecting people harmed by projects it finances. The World Bank and its private-sector lending arm, the International Finance Corp., have financed governments and companies accused of human rights violations such as rape, murder and torture.