Thread by @BBCWorld, A new study suggests falling fertility rates will mean most countries could [...]

A new study suggests falling fertility rates will mean most countries could have shrinking populations by the end of the century

The study, by the Lancet medical journal warns of a "jaw-dropping" impact on society

[Thread]

http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

The BBC have looked at some of the most dramatic population changes forecast, and the measures governments are taking to combat them in:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇯🇵" title="Flagge von Japan" aria-label="Emoji: Flagge von Japan"> Japan

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇮🇹" title="Flagge von Italien" aria-label="Emoji: Flagge von Italien"> Italy

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇨🇳" title="Flagge von China" aria-label="Emoji: Flagge von China"> China

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇮🇷" title="Flagge von Iran" aria-label="Emoji: Flagge von Iran"> Iran

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇧🇷" title="Flagge von Brasilien" aria-label="Emoji: Flagge von Brasilien"> Brazil

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇮🇳" title="Flagge von Indien" aria-label="Emoji: Flagge von Indien"> India

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇳🇬" title="Flagge von Nigeria" aria-label="Emoji: Flagge von Nigeria"> Nigeria
http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

The BBC have looked at some of the most dramatic population changes forecast, and the measures governments are taking to combat them in:https://abs.twimg.com/emoji/v2/... draggable=

Japan:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇯🇵" title="Flagge von Japan" aria-label="Emoji: Flagge von Japan"> Population set to more than halve by the end of 2099

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🧓" title="Älterer Erwachsener" aria-label="Emoji: Älterer Erwachsener"> World& #39;s oldest population (people aged 100+)

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👵" title="Ältere Frau" aria-label="Emoji: Ältere Frau"> Elderly will account for 35%+ of population by 2040

https://abs.twimg.com/emoji/v2/... draggable="false" alt="💼" title="Aktenkoffer" aria-label="Emoji: Aktenkoffer"> Declining number of people able to fill jobs, due to low fertility rate - 1.4
http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

Japan:https://abs.twimg.com/emoji/v2/... draggable=

Population set to more than halve by the end of 2099https://abs.twimg.com/emoji/v2/... draggable="false" alt="🧓" title="Älterer Erwachsener" aria-label="Emoji: Älterer Erwachsener"> World& #39;s oldest population (people aged 100+)https://abs.twimg.com/emoji/v2/... draggable="false" alt="👵" title="Ältere Frau" aria-label="Emoji: Ältere Frau"> Elderly will account for 35%+ of population by 2040https://abs.twimg.com/emoji/v2/... draggable="false" alt="💼" title="Aktenkoffer" aria-label="Emoji: Aktenkoffer"> Declining number of people able to fill jobs, due to low fertility rate - 1.4 https://bbc.in/3fERIJy&q..." title="Japan:https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇯🇵" title="Flagge von Japan" aria-label="Emoji: Flagge von Japan"> Population set to more than halve by the end of 2099https://abs.twimg.com/emoji/v2/... draggable="false" alt="🧓" title="Älterer Erwachsener" aria-label="Emoji: Älterer Erwachsener"> World& #39;s oldest population (people aged 100+)https://abs.twimg.com/emoji/v2/... draggable="false" alt="👵" title="Ältere Frau" aria-label="Emoji: Ältere Frau"> Elderly will account for 35%+ of population by 2040https://abs.twimg.com/emoji/v2/... draggable="false" alt="💼" title="Aktenkoffer" aria-label="Emoji: Aktenkoffer"> Declining number of people able to fill jobs, due to low fertility rate - 1.4 https://bbc.in/3fERIJy&q..." class="img-responsive" style="max-width:100%;"/>

Italy:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇮🇹" title="Flagge von Italien" aria-label="Emoji: Flagge von Italien"> Population expected to more than halve by end of century

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👴" title="Älterer Mann" aria-label="Emoji: Älterer Mann"> Ageing population

https://abs.twimg.com/emoji/v2/... draggable="false" alt="💸" title="Geld mit Flügeln" aria-label="Emoji: Geld mit Flügeln"> Government programme aimed at boosting fertility rates

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Births remains among lowest in EU

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🏡" title="Haus mit Garten" aria-label="Emoji: Haus mit Garten"> Towns schemes to try to boost local populations
http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

Italy:https://abs.twimg.com/emoji/v2/... draggable=

China:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇨🇳" title="Flagge von China" aria-label="Emoji: Flagge von China"> Population will peak in 4 years time, before potentially halving

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Birth rate fallen to lowest level in 70 years

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👨" title="Mann" aria-label="Emoji: Mann"> Men outnumber women by 30+ million

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👨‍👩‍👧‍👦" title="Normale Familie (Mann, Frau, Mädchen, Junge)" aria-label="Emoji: Normale Familie (Mann, Frau, Mädchen, Junge)"> Government ended one-child policy in 2015 allowing for two children
http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

China: https://abs.twimg.com/emoji/v2/... draggable=

Population will peak in 4 years time, before potentially halvinghttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Birth rate fallen to lowest level in 70 yearshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👨" title="Mann" aria-label="Emoji: Mann"> Men outnumber women by 30+ millionhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👨‍👩‍👧‍👦" title="Normale Familie (Mann, Frau, Mädchen, Junge)" aria-label="Emoji: Normale Familie (Mann, Frau, Mädchen, Junge)"> Government ended one-child policy in 2015 allowing for two children https://bbc.in/3fERIJy&q..." title="China: https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇨🇳" title="Flagge von China" aria-label="Emoji: Flagge von China"> Population will peak in 4 years time, before potentially halvinghttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Birth rate fallen to lowest level in 70 yearshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👨" title="Mann" aria-label="Emoji: Mann"> Men outnumber women by 30+ millionhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👨‍👩‍👧‍👦" title="Normale Familie (Mann, Frau, Mädchen, Junge)" aria-label="Emoji: Normale Familie (Mann, Frau, Mädchen, Junge)"> Government ended one-child policy in 2015 allowing for two children https://bbc.in/3fERIJy&q..." class="img-responsive" style="max-width:100%;"/>

Iran:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇮🇷" title="Flagge von Iran" aria-label="Emoji: Flagge von Iran"> Forecast significant decline in population by 2100

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌆" title="Stadtbild in der Dämmerung" aria-label="Emoji: Stadtbild in der Dämmerung"> Annual population growth has dropped below 1%

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👰" title="Woman with veil" aria-label="Emoji: Woman with veil"> Marriages & children in decline

https://abs.twimg.com/emoji/v2/... draggable="false" alt="⚕️" title="Äskulapstab" aria-label="Emoji: Äskulapstab"> Birth control only offered to at-risk women & no longer carried out at state-run medical centres
http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

Iran: https://abs.twimg.com/emoji/v2/... draggable=

Forecast significant decline in population by 2100https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌆" title="Stadtbild in der Dämmerung" aria-label="Emoji: Stadtbild in der Dämmerung"> Annual population growth has dropped below 1%https://abs.twimg.com/emoji/v2/... draggable="false" alt="👰" title="Woman with veil" aria-label="Emoji: Woman with veil"> Marriages & children in declinehttps://abs.twimg.com/emoji/v2/... draggable="false" alt="⚕️" title="Äskulapstab" aria-label="Emoji: Äskulapstab"> Birth control only offered to at-risk women & no longer carried out at state-run medical centres https://bbc.in/3fERIJy&q..." title="Iran: https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇮🇷" title="Flagge von Iran" aria-label="Emoji: Flagge von Iran"> Forecast significant decline in population by 2100https://abs.twimg.com/emoji/v2/... draggable="false" alt="🌆" title="Stadtbild in der Dämmerung" aria-label="Emoji: Stadtbild in der Dämmerung"> Annual population growth has dropped below 1%https://abs.twimg.com/emoji/v2/... draggable="false" alt="👰" title="Woman with veil" aria-label="Emoji: Woman with veil"> Marriages & children in declinehttps://abs.twimg.com/emoji/v2/... draggable="false" alt="⚕️" title="Äskulapstab" aria-label="Emoji: Äskulapstab"> Birth control only offered to at-risk women & no longer carried out at state-run medical centres https://bbc.in/3fERIJy&q..." class="img-responsive" style="max-width:100%;"/>

Brazil:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇧🇷" title="Flagge von Brasilien" aria-label="Emoji: Flagge von Brasilien"> Population set to fall by 47 million by 2100

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Decline in fertility rates over past 40 years

https://abs.twimg.com/emoji/v2/... draggable="false" alt="✝️" title="Lateinisches Kreuz" aria-label="Emoji: Lateinisches Kreuz"> Soap operas portraying small families contributed to lower birth rates

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🤰" title="Schwangere Frau" aria-label="Emoji: Schwangere Frau">Launched a government campaign to stem high teenage pregnancy rates
http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

Brazil:https://abs.twimg.com/emoji/v2/... draggable=

Population set to fall by 47 million by 2100https://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Decline in fertility rates over past 40 yearshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="✝️" title="Lateinisches Kreuz" aria-label="Emoji: Lateinisches Kreuz"> Soap operas portraying small families contributed to lower birth rateshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🤰" title="Schwangere Frau" aria-label="Emoji: Schwangere Frau">Launched a government campaign to stem high teenage pregnancy rates https://bbc.in/3fERIJy&q..." title="Brazil:https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇧🇷" title="Flagge von Brasilien" aria-label="Emoji: Flagge von Brasilien"> Population set to fall by 47 million by 2100https://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Decline in fertility rates over past 40 yearshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="✝️" title="Lateinisches Kreuz" aria-label="Emoji: Lateinisches Kreuz"> Soap operas portraying small families contributed to lower birth rateshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🤰" title="Schwangere Frau" aria-label="Emoji: Schwangere Frau">Launched a government campaign to stem high teenage pregnancy rates https://bbc.in/3fERIJy&q..." class="img-responsive" style="max-width:100%;"/>

India:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇮🇳" title="Flagge von Indien" aria-label="Emoji: Flagge von Indien"> Expected to overtake China as the most populous country in the world by 2100

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👫" title="Mann und Frau halten Händchen" aria-label="Emoji: Mann und Frau halten Händchen"> Population is expected to drop by 2 million at the end of the century

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Birth rate stands at 2.24

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👨‍👩‍👦" title="Normale Familie (Mann, Frau, Junge)" aria-label="Emoji: Normale Familie (Mann, Frau, Junge)"> Prime Minister Narendra Modi called for smaller families
http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

India:https://abs.twimg.com/emoji/v2/... draggable=

Expected to overtake China as the most populous country in the world by 2100https://abs.twimg.com/emoji/v2/... draggable="false" alt="👫" title="Mann und Frau halten Händchen" aria-label="Emoji: Mann und Frau halten Händchen"> Population is expected to drop by 2 million at the end of the centuryhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Birth rate stands at 2.24 https://abs.twimg.com/emoji/v2/... draggable="false" alt="👨‍👩‍👦" title="Normale Familie (Mann, Frau, Junge)" aria-label="Emoji: Normale Familie (Mann, Frau, Junge)"> Prime Minister Narendra Modi called for smaller families https://bbc.in/3fERIJy&q..." title="India:https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇮🇳" title="Flagge von Indien" aria-label="Emoji: Flagge von Indien"> Expected to overtake China as the most populous country in the world by 2100https://abs.twimg.com/emoji/v2/... draggable="false" alt="👫" title="Mann und Frau halten Händchen" aria-label="Emoji: Mann und Frau halten Händchen"> Population is expected to drop by 2 million at the end of the centuryhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="👶" title="Baby" aria-label="Emoji: Baby"> Birth rate stands at 2.24 https://abs.twimg.com/emoji/v2/... draggable="false" alt="👨‍👩‍👦" title="Normale Familie (Mann, Frau, Junge)" aria-label="Emoji: Normale Familie (Mann, Frau, Junge)"> Prime Minister Narendra Modi called for smaller families https://bbc.in/3fERIJy&q..." class="img-responsive" style="max-width:100%;"/>

Nigeria:

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇳🇬" title="Flagge von Nigeria" aria-label="Emoji: Flagge von Nigeria"> Population of sub-Saharan Africa expected to treble in size by 2100

https://abs.twimg.com/emoji/v2/... draggable="false" alt="👴" title="Älterer Mann" aria-label="Emoji: Älterer Mann"> One of the largest working-age populations

https://abs.twimg.com/emoji/v2/... draggable="false" alt="🧒" title="Kind" aria-label="Emoji: Kind"> Finance Minister Zainab Ahmed says there are a “lot of families who cannot even feed the children they have"
http://bbc.in/3fERIJy ">https://bbc.in/3fERIJy&q...

Nigeria:https://abs.twimg.com/emoji/v2/... draggable=

Population of sub-Saharan Africa expected to treble in size by 2100https://abs.twimg.com/emoji/v2/... draggable="false" alt="👴" title="Älterer Mann" aria-label="Emoji: Älterer Mann"> One of the largest working-age populationshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🧒" title="Kind" aria-label="Emoji: Kind"> Finance Minister Zainab Ahmed says there are a “lot of families who cannot even feed the children they have" https://bbc.in/3fERIJy&q..." title="Nigeria:https://abs.twimg.com/emoji/v2/... draggable="false" alt="🇳🇬" title="Flagge von Nigeria" aria-label="Emoji: Flagge von Nigeria"> Population of sub-Saharan Africa expected to treble in size by 2100https://abs.twimg.com/emoji/v2/... draggable="false" alt="👴" title="Älterer Mann" aria-label="Emoji: Älterer Mann"> One of the largest working-age populationshttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🧒" title="Kind" aria-label="Emoji: Kind"> Finance Minister Zainab Ahmed says there are a “lot of families who cannot even feed the children they have" https://bbc.in/3fERIJy&q..." class="img-responsive" style="max-width:100%;"/>

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