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New Zealand updates El Niño/La Niña tracking to reflect warming oceans, improving forecast accuracy.
Rising ocean temperatures from global warming are making traditional El Niño and La Niña tracking less accurate, prompting New Zealand to adopt a new method that compares sea surface temperatures to the current tropical average instead of fixed historical baselines.
This change better reflects real-world impacts, as seen in the 2024–25 summer when La Niña-like conditions occurred despite not meeting old thresholds.
The updated approach improves forecast accuracy, though ENSO remains one part of a complex climate system.
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Nueva Zelanda actualiza el seguimiento de El Niño / La Niña para reflejar el calentamiento de los océanos, mejorando la precisión del pronóstico.