Every year on Earth, hundreds of millions of hectares of vegetation are swept away by flames. During the summer of 2018, Europe experienced a foretaste of the foreseeable consequences of climate change, with record temperatures and extreme drought leading to forest fires on an unprecedented scale, particularly in Sweden. How can we better prevent and control these fires, over 90% of which are man-made? Climatologists and specialists are joining forces to provide the best possible response to this threat. From increased prevention among young people, to innovative detection systems and the planting of cypress trees to block the flames, methods are being studied to combat this scourge from France to Spain and Germany.