Scientists in New York say unexplained heatwave 'hotspots' are popping up on every continent except Antarctica like 'giant, angry skin blotches'.

A striking new phenomenon is emerging: distinct regions are seeing repeated heat waves that are so extreme, they fall far beyond what any model of global warming can predict or explain. A new study provides the first worldwide map of such regions, which show up on every continent except Antarctica like giant, angry skin blotches.