An attribution study published October 15, 2026, calculated that El Niño contributed approximately 5 mph (8 kph) to Hurricane Polo's peak wind speed.

From the articleClimate Change Now Outpaces El Niño in Pacific Hurricane Risk, Polo Study FindsAlso in Estudio dice que el calentamiento global contribuyó más que El Niño a potenciar el huracán Polo, Was El Niño to blame for Hurricane Polo’s record-breaking storm?, Study says global warming did more than El Niño to turbocharge Hurricane Polo, El Niño helped turn tropical storm into Category 5 monster in just 24 hours