Warning of record global temperatures as chance of very strong El Niño grows

While El Niño forms across the tropical Pacific, forecasters look at one region in particular called the Niño3.4, monitoring a three-monthly average of the sea surface temperature compared to the long-term average. A strong or 'super El Nińo' is when that goes above 1.5C. Forecasts from the European Centre for Medium Range Weather Forecasts (EC), NOAA and BoM are all pretty much aligned in their outcomes. …