A supercharged El Niño is threatening more deadly heatwaves — and Americans are ignoring the risks

North America Climate Mon, 20 Jul 2026 11:51:28 GMT Moderate confidence — 73/100

For many Americans, summer now means confronting a punishing heatwave at some point.
The Fourth of July weekend was one such case: Triple-digit temperatures led to dozens of deaths in New Jersey, canceled holiday block parties across states and resulted in buckling rail lines.
A historic, supercharged global El Niño event isn’t going to make matters any better — with more intense heat domes forecast this year on top of rising temperatures linked to climate change, meteorologist Jeff Berardelli, told The Independent.

For many Americans, summer now means confronting a punishing heatwave at some point.
The Fourth of July weekend was one such case: Triple-digit temperatures led to dozens of deaths in New Jersey, canceled holiday block parties across states and resulted in buckling rail lines.
A historic, supercharged global El Niño event isn’t going to make matters any better — with more intense heat domes forecast this year on top of rising temperatures linked to climate change, meteorologist Jeff Berardelli, told The Independent.

Sources: The Independent