What is an El Niño and how could it cause the hottest year on record?

By Guardian Australia

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This year’s ‘super' El Niño currently heating up the planet has surpassed the highest temperature ever recorded for the phenomenon, several months before it has even reached its expected peak. But what exactly is an El Niño and how do they work? Matilda Boseley explains Subscribe to Guardian Australia on YouTube and hit the bell to see new videos ► https://www.youtube.com/@guardianaustralia?sub_confirmation=1 • Huge El Niño projected to cause 450,000 deaths in next six months ► https://www.theguardian.com/environment/2026/sep/23/el-nino-450000-extra-deaths-six-months Get the latest news at theguardian.com ► https://www.theguardian.com/au?CMP=gdnaus_yt Support Guardian Australia ► https://support.theguardian.com/contribute?CMP=gdnaus_yt Sign up to Guardian Australia's free daily newsletters, the Morning Mail and Afternoon Update ► https://www.theguardian.com/email-newsletters?CMP=gdnaus_yt Find or follow Guardian Australia: Website ► https://theguardian.com/au?CMP=gdnaus_yt Googl

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