El Nino and La Nina cycles recur following neutral ENSO states

the verdict

COMMON KNOWLEDGE

Legacy classification; evidence review pending

Recorded sources

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Is it true that El Nino and La Nina cycles recur following neutral ENSO states?

The cyclical transition between El Nino and La Nina phases, interspersed with neutral ENSO states, is a fundamental, defining characteristic of the El Nino-Southern Oscillation phenomenon.

Verdict: COMMON KNOWLEDGE · 0 sources for, 0 against · Last checked 5 Aug 2026

The analysis

The claim describes the standard oscillatory definition and behavior of the El Nino-Southern Oscillation (ENSO) cycle, wherein the system moves between warm (El Nino), cool (La Nina), and neutral phases. As this is a well-established, definitional aspect of climate science confirmed by everyday meteorological observation and foundational climatology, no citation is required.

What does the evidence say?

Receipt History

first checked05 Aug 2026

judged → COMMON KNOWLEDGE · 9505 Aug 2026

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