Climate change may harm male fertility

Researchers from the University of East Anglia in the UK found that heatwaves damage sperm in insects -- with negative impacts for fertility across generations.

The study showed male infertility during heatwaves could help to explain why climate change is having such an impact on species populations, including climate-related extinctions in recent years. A warmer atmosphere will be more volatile and hazardous, with extreme events like heatwaves becoming increasingly frequent, intense and widespread, researchers said. Heatwaves are particularly damaging extreme weather events. Local extinctions are known to occur when temperature changes become too intense