Modelled future change (absolute and relative) in surface summertime ozone concentrations (left: daily average, right: daily maxima) over Europe at the end of the century

Absolute and relative difference between future (2071-2100) and present (1960-2010) summertime average daily and maxima ozone levels in a 3 model ensemble. The modelled changes shown are only due to climate variability and climate change. A diamond sign is plotted where the change is significant, and a plus sign is added where the change is robust across two-third of modelled years.
The period 2071-2100 is taken as representative of the end of the 21st century (2100)