A climate scientist has told FRANCE 24 that we should all watch out and prepare for the strong possibility of an extremely hot summer in the northern hemisphere in the coming months. The World Meteorological Organization is warning that the El Nino phenomenon is set to develop in the Pacific between now and the end of August, increasing the risk of extreme weather events. Climate scientist at the University of Oxford, Chloe Brimicombe, spoke to us in Perspective.