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In sharp contrast, the period between 14,300 and 11,100 years ago, which includes the Younger Dryas interval, was an interval of reduced sea level rise at about 6.0–9.9 mm/yr. Meltwater pulse 1C was centered at 8,000 years ago and produced a rise of 6.5 m in less than 140 years, such that sea levels 5000 years ago were around 3m lower than ...
Messinian salinity crisis. Artistic interpretation of the Mediterranean geography during its evaporative drawdown, after complete disconnection from the Atlantic. The rivers carved deep gorges in the exposed continental margins; The concentration of salt in the remaining water bodies led to rapid precipitation of the salt.
The main causes of water scarcity in Africa are physical and economic water scarcity, rapid population growth, and the effects of climate change on the water cycle. Water scarcity is the lack of fresh water resources to meet the standard water demand. [1] The rainfall in sub-Saharan Africa is highly seasonal and unevenly distributed, leading to ...
Lake Turkana (/ tɜːrˈkɑːnə, - ˈkæn -/) is a saline lake in the Kenyan Rift Valley, in northern Kenya, with its far northern end crossing into Ethiopia. [ 2 ] It is the world's largest permanent desert lake and the world's largest alkaline lake. By volume it is the world's fourth-largest salt lake [ 3 ] after the Caspian Sea, Issyk-Kul ...
Climate change in Africa. Graph showing temperature change in Africa between 1901 and 2021, with red colour being warmer and blue being colder than average (The average temperature during 1971–2000 is taken as the reference point for these changes.) Climate change in Africa is an increasingly serious threat as Africa is among the most ...
The sea-level curve (also known as the eustatic curve) is the representation of the changes of the sea level relative to present day mean sea level as gleaned from the stratigraphic record throughout the geological history. The first such curve is the Vail curve or Exxon curve. The names of the curve refer to the fact that in 1977 a team of ...
Hartbeespoort Dam(also known as Harties) is an arch type dam situated in the North West Provinceof South Africa. It lies in a valleyto the south of the Magaliesbergmountain range and north of the Witwatersberg mountain range, about 35 kilometres north west of Johannesburgand 20 kilometres west of Pretoria. The name of the dam means "dam at the ...
There are many effects of climate change on oceans. One of the main ones is an increase in ocean temperatures. More frequent marine heatwaves are linked to this. The rising temperature contributes to a rise in sea levels due to melting ice sheets.