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Map of the Earth centering the Pacific Ocean with a color-coded overlay of the sea surface heigh anomaly. neutral is white and increased height  are increasingly darker shades of red, while lower heights are blue. The max deviation from neutral is 12.5 cm. The lowest deviation is at the equator with alternating bands of higher and lower heights with the most significant height just above the equator on the Asia side of the Pacific

La Niña Is Here

Cool water has welled up in the tropical Pacific in winter 2024–2025. But it may not stick around for long.

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