Human life expectancy will reduce by an average of 0.44 years with every 1-degree Celsius increase in the global temperature, according to a recent study.

The number of fatal drug overdoses declined for the first time in 28 years, and U.S. life expectancy at birth ticked upward for the first time since 2014, according to long-awaited numbers for 2018 published Thursday by the U.S. Centers for Disease Control and Prevention.