Extreme weather events such as frosts, heavy rains and droughts are the main drivers of lower olive yields in Italy, according to Professor Riccardo Valentini of the Euro-Mediterranean Centre for Climate Change. Italy has experienced a 57% drop in olive oil production in 2018.
According to Valentini, extreme weather events can make olive trees more vulnerable to disease outbreaks such as Xylella fastidiosa.
Read media coverage here (CNN) and here (Guardian). See also the Foodsource resource How might climatic change affect food systems in the future?