New heat records have been shattered around the world this month, with Sicily setting a new European high of 48.8C and Spain roasting with a 47.4C national record.
Although hot weather is not uncommon in the Mediterranean in August, new modelling shows that heatwaves will become longer and more intense if greenhouse gas emissions grow.
The impact will be particularly evident in the southern hemisphere: by the end of this century, the number of days above 35C could increase by more than 200 annually in parts of South America in a scenario where emissions grow.
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