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The 4.2-kiloyear (thousand years) BP aridification event (long-term drought), also known as the 4.2 ka event, [2] was one of the most severe climatic events of the Holocene epoch. [3] It defines the beginning of the current Meghalayan age in the Holocene epoch. Starting around 2200 BC, it most likely lasted the entire 22nd century BC.
However, all of these events were limited to individual human societies: a collapse of the entire human civilization would be historically unprecedented. Some of the more extreme warnings of civilizational collapse caused by climate change, such as a claim that civilization is highly likely to end by 2050, have attracted strong rebutals from ...
Expeditions in Antarctica before the Heroic Age of Antarctic Exploration, 1897 Early Western theories believed that in the far south of the globe existed a vast continent, known as Terra Australis . The rounding of the Cape of Good Hope and Cape Horn in the 15th and 16th centuries proved that Terra Australis Incognita ("Unknown Southern Land ...
The Age of Discovery (c. 1418 – c. 1620), [1] also known as the Age of Exploration, was part of the early modern period and largely overlapped with the Age of Sail. It was a period from approximately the late 15th century to the 17th century, during which seafarers from a number of European countries explored, colonized, and conquered regions ...
A runaway greenhouse effect will occur when a planet's atmosphere contains greenhouse gas in an amount sufficient to block thermal radiation from leaving the planet, preventing the planet from cooling and from having liquid water on its surface.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 January 2025. British Antarctic explorer (1868–1912) "Scott of the Antarctic" redirects here. For the film, see Scott of the Antarctic (film). Robert Falcon Scott Robert Falcon Scott in 1905 Born (1868-06-06) 6 June 1868 Plymouth, Devon, England Died c. 29 March 1912 (1912-03-29) (aged 43) Ross Ice ...
Gravitational wave sensors can detect even a minute change in the gravitational fields due to the influence of heavier bodies. Large seismic waves can interfere with the gravitational waves and may cause shifts in the atoms. Hence, the magnitude of seismic waves can be detected by a relative shift in the gravitational waves. [5]
The convent of San Augustin, a mission centre established at Yuriria, Mexico in 1550. The Catholic Church during the Age of Discovery inaugurated a major effort to spread Christianity in the New World and to convert the indigenous peoples of the Americas and other indigenous peoples.