The El Niño in the Pacific Ocean is producing chart-topping heat data. Its influence is forecast to ripple around the planet.
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Can scientists really trust El Niño forecasts yet?
Oceans are holding excess heat, so while El Niño can limit hurricanes, scientists warn storms can still form.
Sea surface temperatures in the Pacific Ocean have topped daily warm records for more than 20 days in June, a precursor to what many scientists expect to be one of the strongest El Niño events on record.
Ocean temperatures in the El Niño region – along the equator in the Central and Eastern
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