El Niño Cycle and Global Warming

Meteorologists report that the natural El Niño–Southern Oscillation cycle, encompassing El Niño–Southern Oscillation and El Niño–Southern Oscillation, is both influenced by and contributing to global warming. A new study published in Nature Geoscience by researchers from the University of Tokyo, including Yu Kosaka, attributes about three-quarters of the recent increase in Earth's energy imbalance and subsequent temperature spike to a combination of long-term human-caused climate change and a shift from an unusual three-year El Niño–Southern Oscillation to an El Niño–Southern Oscillation cycle. The United States — National Oceanic and Atmospheric Administration has updated its method for labeling El Niño–Southern Oscillation and El Niño–Southern Oscillation events, moving from a fixed 30-year average to a relative index, which will likely result in more El Niño–Southern Oscillation and fewer El Niño–Southern Oscillation classifications. This change is due to rapidly warming global waters. An El Niño–Southern Oscillation is forecasted to develop later this year, which could lead to warmer global temperatures in 2027 and potentially set a new global temperature record, as noted by Jennifer Francis of the Woodwell Climate Research Center.