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A massive volcano eruption would eject extraordinary volumes of volcanic dust, toxic and greenhouse gases into the atmosphere with serious effects on global climate (towards extreme global cooling: volcanic winter if short-term, and ice age if long-term) or global warming (if greenhouse gases were to prevail).
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 ".
Scientific consensus on causation: Academic studies of scientific agreement on human-caused global warming among climate experts (2010–2015) reflect that the level of consensus correlates with expertise in climate science. [435] A 2019 study found scientific consensus to be at 100%, [436] and a 2021 study concluded that consensus exceeded 99% ...
Just half a degree rise of global warming will triple the size of the area of Earth that is considered to be too hot for humans. The new area will be equivalent to the size of the U.S., according ...
Preventing an extra single degree of heat could make a huge difference for multitudes of people on the planet, says an international panel of scientists. UN report on global warming carries life ...
The effects of climate change on human health are profound because they increase heat-related illnesses and deaths, respiratory diseases, and the spread of infectious diseases. There is widespread agreement among researchers, health professionals and organizations that climate change is the biggest global health threat of the 21st century. [1] [2]
Climate change mitigation scenarios are possible futures in which global warming is reduced by deliberate actions, such as a comprehensive switch to energy sources other than fossil fuels. These are actions that minimize emissions so atmospheric greenhouse gas concentrations are stabilized at levels that restrict the adverse consequences of ...
A climate apocalypse is a term used to denote a predicted scenario involving the global collapse of human civilization due to climate change. Such collapse could theoretically arrive through a set of interrelated concurrent factors such as famine, extreme weather, war and conflict, and disease. [1]