Observing temperature patterns in the lower stratosphere gives scientists clues about our planet’s changing climate. Global average temperatures in the lower stratosphere for 2013 were slightly below the 1981–2010 average.  

In early 2011, stratospheric temperatures rose over the tropics due to La Nina while temperatures over the poles fell below the long-term average.

Trends in Emissions of Ozone-Depleting Substances, Ozone Layer Recovery, and Implications for Ultraviolet Radiation Exposure

This report integrates current knowledge of the stratospheric ozone layer, human-emitted ozone-depleting substances, and the amount of harmful ultraviolet radiation reaching Earth's surface.