The Bureau of Meteorology has officially declared a La Niña event is happening this summer. So what is a La Niña event, and how do we know it’s happening? What is La Niña? La Niña, and its counterpart El Niño, are large-scale weather events that happen in the Pacific Ocean. El Niño was originally named … Continue reading Explainer: what is La Niña?
For the last 11,000 years, the southern Pacific Ocean has cycled between warm El Niño and cold La Niña conditions, driving the climate on both sides of the ocean. But new modelling suggests that these cycles may be interrupted as a world warms under human-induced climate change. An international team used one of South Korea’s … Continue reading How will El Niño and La Niña events change with the climate?
El Niño and La Niña events are expected to increase in frequency and intensity as a result of climate change, according to a new review. The review, carried out by an international team of scientists and published in Nature Earth & Environment, synthesises a range of different models to make predictions about the El Niño … Continue reading El Niño happening more as climate warms
Lush, temperate rainforests, flowing rivers and abundant glaciers are just part of New Zealand’s (Aotearoa) charm. But in a strange turn of events, the tip of the North Island (Te Ika-a-Māui) has been in drought for months despite Australia being inundated with rain. While Aussies may be thanking La Niña for the reprieve from heatwaves, … Continue reading Land of the Long White Drought
As a new El Niño event takes hold, Cosmos explains the mechanics of this extreme weather event and why scientists believe it is set to become more common. By Belinda Smith.