When temperatures rise by 3°C towards the end of the century, Europe can expect a three-fold increase in annual heat-related mortality - to 129 000 deaths per year - due to climatic changes and Europe’s ageing population, a new study finds. Already existing regional disparities in heat risk, are expected to widen, with up to 10 times more deaths in southern and eastern Europe, even though heat-related mortality will rise everywhere in Europe.