India, April 2 -- Babies born to women exposed to extreme temperatures in Pakistan will have low birth weight. The risk is up to 70 per cent higher in some parts of Pakistan, with regions in southern Punjab, northern Sindh, and Baluchistan having the highest risks.

"Pregnant women in Pakistan face a heightened risk of delivering infants of low birth weight following exposure to extreme temperatures, with percent excess risk varying among provinces from ~ 30% to ~ 70% at high percentiles. An estimated 9.39-13.51% of low-birth-weight cases are attributable to heat, and this burden is projected to increase by ~ 8-10% by the 2060 s under high emission scenarios. Regions in southern Punjab, northern S...