Spermageddon, ‘greedy jobs’ and abject fear: why birth rates are plummeting – and why it matters
The Guardian · 19d ago · Selected
Mainstream story
The author of Generation Maybe, Camilla Cavendish, explains the many reasons people are having fewer children, from dating apps to unaffordable housing and the climate crisisGeneration Maybe is the most tactful possible title for Camilla Cavendish’s bracing new book – because the trend she’s describing is anything but a “maybe”. “The wave of childlessness that is sweeping the globe is extraordinary,” she writes. It’s in the UK, where the fertility rate hit 1.39 children per woman in 2025, the lowest on record. It’s across the Organisation for Economic Co-operation and Development, visible in so many measures – nearly half of Canadian women surveyed in their 40s said they’d had fewer children than they would have liked. But it’s also a global story. “The UAE, Chile and Tamil Nadu in India have even lower birthrates than Germany,” Cavendish writes. “China is growing old before it gets rich, and Russia has maintained its population size purely by annexing Crimea and parts of Ukraine.” In fact, when it comes to falling populations, “only the Black Death in the 14th century is comparable to what is happening now”.When I meet her in central London, Cavendish is tailored, self-possessed, you might even say poised, but very open – she never gives an opinion without asking yours, she talks very freely about her family and she is upfront about what she sees as her faults. Now 58, she started her career at McKinsey, the mega-management consultancy, having done PPE at Oxford at the same time as David Cameron, for whom she worked as policy director when he was in government and to whom she remains intensely loyal (every time his name comes up, we have a fight). Continue reading...
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Background brief
The debate surrounding global fertility collapse centers on two competing explanations: biological impairment versus economic structural barriers. The biological narrative—frequently dubbed 'Spermageddon'—was popularized by epidemiologist Shanna Swan's research alleging that environmental toxins and endocrine disruptors have halved sperm counts over recent decades. While this framing attracts significant media attention, many demographers note that medical infertility accounts for only a fraction of the drop in births.
In contrast, socioeconomic research highlights real income stagnation, housing unaffordability, and workplace structure as the primary catalysts for declining birth rates. Harvard economist Claudia Goldin's framework of 'greedy jobs' demonstrates how modern high-earning professions demand unpredictable, extended hours that clash directly with child-rearing. For lower- and middle-income workers, the challenge is compounded by high housing costs relative to wages, leading young adults to postpone or forgo children altogether.
Demographic reporting across OECD countries consistently indicates that intended family sizes remain higher than achieved family sizes. This gap suggests that external constraints—predominantly income precarity, childcare expense, and housing availability—rather than a lack of biological capacity or desire for children, are the decisive factors driving record-low birth rates.
| Relationship | Evidence | Why relevant |
|---|---|---|
|
Camilla Cavendish
directed
Policy Unit (10 Downing Street)
Institutional
C — single source
2015→2016
|
Cavendish served as Head of the No 10 Policy Unit under Prime Minister David Cameron between 2015 and 2016. Counter: Cavendish subsequently took a crossbench peerage and worked in journalism, operating independently of Conservative party… |
Establishes Cavendish's public policy background when analyzing structural state interventions for demographic decline. |
|
Camilla Cavendish
studied with and advised
David Cameron
Personal
C — single source
1985→2016
|
Cavendish studied PPE at Oxford alongside Cameron and later joined his administration as director of policy. | Directly referenced in the article context regarding her career trajectory and loyalty. |
|
Claudia Goldin
formulated concept of
Greedy Jobs theory
Ideological
C — single source
2014→ongoing
|
Goldin introduced the economic framework of 'greedy jobs' in her research on gender earnings gaps and family formation. Counter: Goldin's primary research focus was explaining the gender pay gap in high-earning corporate/professional fields rather t… |
Provides the theoretical framework for the article's focus on high-demand modern workplaces discouraging childbearing. |
|
Shanna Swan
authored research promoting
Endocrine disruptor theory of fertility decline
Ideological
C — single source
2017→ongoing
|
Swan published 'Count Down' (2021), linking falling sperm counts and biological infertility to environmental phthalates and chemical exposure. Counter: Demographers and economists point out that birth rate drops are heavily concentrated in voluntary decisions to delay or… |
Represents the 'Spermageddon' biological narrative highlighted in the article headline. |
|
Economic precarity and housing costs driver
documented in studies by
Organisation for Economic Co-operation and Development
Ideological
C — single source
2019→ongoing
|
OECD housing and demographic research consistently links rising housing costs relative to youth median earnings with delayed partnership and reduced total ferti… Counter: Fertility rates have also fallen below replacement levels in Nordic countries with strong social housing, child benefits… |
Directly supports the editor's premise that low real income and living costs, rather than biological sperm decline, drive falling birth rate… |
|
Camilla Cavendish
formerly employed by
McKinsey & Company
Institutional
C — single source
1990→1993
|
Cavendish began her management career as a consultant at McKinsey & Company after completing her studies at Oxford. | Contextualises her corporate career path and perspective on corporate workplace expectations. |
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