Climate change 'could pose threat to male fertility'

Climate change could pose a major threat to male fertility, warns new research. The study shows that heatwaves damage sperm in insects - with negative impacts for fertility across generations. The research team say that male infertility during heatwaves could help to explain why climate change is having such an impact on species, including climate-related extinctions in recent years. Research group leader Prof Matt Gage, of the University of East Anglia, said: "We know that biodiversity is suffering under climate change, but the specific causes and sensitivities are hard to pin down.