A trio of physicists and oceanologists, two from the Institute of Geophysics and Meteorology of the University of Cologne and the third from the GEOMAR Helmholtz Center for Ocean Research Kiel, all in Germany, found using the CESM1 climate model that an extreme El Niño tipping point could be reached in the coming decades at current emissions. The El Niño‐Southern Oscillation (ENSO) is a climate phenomenon in which heat released by parts of the ocean into the atmosphere results in more precipitation in places like the west coast of North and South America, and drought in places like Canada and Africa. Over the past few years, weather observers have noticed that ENSO events have become more extreme. (More on phys.org)