Ørken og Verdens befolkning

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Forskel mellem Ørken og Verdens befolkning

Ørken vs. Verdens befolkning

Ørken i Marokko Atacamaørkenen i Chile Ørken Sinai I geografi er en ørken en landskabsform eller en region hvor der falder meget lidt nedbør. Statistik og prognose fra 2015 (tjek med illustrationsbeskrivelse på commons): Denne visualisering viser medium prognose fra ''International Institute for Applied Systems Analysis'' (IIASA). Prognose udgivet af ''the Wittgenstein Centre''. (Wittgenstein Centre for Demography and Global Human Capital (2015). Wittgenstein Centre Data Explorer Version 1.2.Data fra 2015: https://ourworldindata.org/a-history-of-global-living-conditions-in-5-charts ourworldindata.org: The short history of global living conditions and why it matters that we know it by Max Roser Citat: "...This visualization shows the projection of the IIASA demographers for the size and the educational composition of the world population until 2100. It is an interesting look into the future: With today’s lower global fertility the researchers expect that the number of children will decline from now – there will never be more children on the planet than today. And as mentioned before the IIASA researchers expect the world population to peak in 2070 and to decline thereafter. Focusing on the educational breakdown the projection suggests that by 2100, there will be almost no one without formal education and there will be more than 7 billion minds who will have received at least secondary education. With the great importance of education for improving health, increasing political freedom, and ending poverty this prospect is very encouraging...", https://web.archive.org/web/20190228211037/https://ourworldindata.org/a-history-of-global-living-conditions-in-5-charts backup fra 2019 Statistik og ældre prognose fra 2011 (tjek med illustrationsbeskrivelse på commons)Data fra 2011: https://web.archive.org/web/20110319151432/http://www.geohive.com/earth/population1.aspx GeoHive estimates: Et kort som viser folkemængden i forskellige lande i verden. Statistik og ældre prognose fra 2007 (tjek med illustrationsbeskrivelse på commons)Data fra 2007: http://esa.un.org/unpp/ UN, https://web.archive.org/web/20070609104634/https://esa.un.org/unpp/ backup fra 2007 - men uden data: Beregnet folkemængde i forskellige verdensdele mellem 1950 og 2050. Verdens befolkning er en almen betegnelse for det totale antal mennesker på jorden ved et givent tidspunkt.