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February 26, 2026 10:50 am
Story tip!
Global warming is causing more abortions.
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New LCDS Research Shows High Temperatures Affect Sex Ratios at Birth
Sex ratios at birth — the number of boys born relative to girls — are a key demographic indicator. They reflect underlying patterns of maternal health, prenatal survival, and, in some contexts, gender discrimination. In recent decades, skewed sex ratios have raised concerns in several regions, particularly where son preference and sex-selective abortion are prevalent. The research links these concerns to worries about increasing exposure to extreme heat worldwide and raising new questions about how environmental stress affects pregnancy outcomes and population composition.
Temperature and sex ratios at birth
While some evidence suggests that sex ratios at birth (SRBs) are shaped by environmental and social factors, little is known about the relationship between temperature and sex ratios at birth. We show that high temperatures in the nine months before birth are negatively associated with male births in sub-Saharan Africa and India. The exposure timing demonstrates that ambient heat can increase prenatal mortality in early pregnancy, particularly among males, in both world regions. We also demonstrate that in regions with high son preference, elevated temperatures during windows where sex-selective abortions could take place reduce these abortions. These findings demonstrate that heat exposure may have complex behavioral and biological implications for maternal and fetal health and ramifications on social phenomena such as gender discriminatory practices.
The Global Tipping Points Report 2025 Part 8: Financialization of Climate Risk and Systemic Consequences
This is Part VIII — and the concluding installment — of a multipart, systematic refutation of the University of Exeter’s Global Tipping Points Report 2025. Part I examined catastrophe framing and the tension between rhetorical certainty and scientific uncertainty .Part II analyzed the governance architecture and technocratic expansion .Part III assessed the industrial policy blueprint behind “positive tipping points” .Part IV examined narrative management and the treatment of dissent .Part V eva...