A study from the University of Oxford reveals that temperatures above 20°C lead to fewer male births compared to females, due to increased prenatal mortality among males. The research, analyzing over five million births in 33 sub-Saharan countries and India, indicates that extreme heat affects human reproduction and family planning, particularly impacting women in vulnerable settings. The findings highlight the need for further studies on environmental factors to protect maternal health amid rising global temperatures. Teljes cikk (Euronews.com)