Earth just had its hottest summer on record, U.N. says, warning "climate breakdown has begun"

United Nations — "Earth just had its hottest three months on record," the United Nations weather agency said Wednesday.

"The dog days of summer are not just barking, they are biting," warned U.N. Secretary-General Antonio Guterres in a statement coinciding with the release of the latest data from the European Union's Copernicus Climate Change Service (C3S) by the World Meteorological Organization.

"Our planet has just endured a season of simmering — the hottest summer on record. Climate breakdown has begun," Guterres said.