California's rainfall year ended today, and though the final totals aren't yet official, the parched state will likely end up with one of its lowest rainfall years since the 1920s.
El Niño and La Niña are parts of an oscillation in the ocean-atmosphere system (called the El Niño Southern Oscillation, or ENSO cycle) that can impact weather and climate conditions across the globe. El Niño features warmer-than-average temperatures in the waters of the equatorial Pacific Ocean, while La Niña features colder-than-average waters. Read our stories below on the latest ENSO conditions and research into how the cycle affects global weather patterns.
We wait in anticipation of droughts and floods when El Niño and La Niña are forecast but what are these climatic events?
May was the warmest month ever measured on Earth since the 1880s, when cowboys battled in Wild West shootouts and the State of Liberty was built.
California brown pelicans almost completely failed to breed at their nesting sites in Mexico this year.
The change in global rainfall patterns caused by a powerful El Niño won't be welcomed everywhere in the world.
The most intense El Niño events may soon hit every 10 years, instead of every 20 years, thanks to warming water in the eastern Pacific Ocean, a new study predicts.
Last month was the hottest November on record since 1880, new climate data suggests. And the odds that next year will be even hotter are rising.