The North Pacific Oscillation (NPO) significantly influences El Niño-Southern Oscillation (ENSO) development. This study uses climate model simulations under high-emission scenarios to demonstrate that greenhouse warming enhances the NPO's impact on ENSO. Warmer SSTs strengthen the wind-evaporation-SST feedback, amplifying NPO-generated wind anomalies and triggering ENSO. This strengthened influence could improve long-lead ENSO prediction.
