Why the most extreme El Niño event for a century is on its way

Every several years, the surface temperatures of the Pacific Ocean rise, triggering a climate event that has a domino effect on weather patterns across the globe. This is known as El Niño – and this year, meteorologists predict we’re in for a big one. But how exactly do these events occur, how big an effect is climate change having on their frequency and impact, and what can we expect to see in the future? In this episode, we’re joined by Prof Adam Scaife, head of long-range prediction at the Met Office in the UK. He tells us how El Niño events arise in the Pacific Ocean and spread across the globe, how they’ve been occurring cyclically for thousands of years, and why the event this year is forecasted to be the most extreme in decades. Take your curiosity further with a subscription to BBC Science Focus magazine. Every issue is packed with fascinating insights into the science behind everyday life, the latest breakthroughs and expert analysis, delivered straight to your door. Receive an extra £5 when you subscribe using the code SF5OFF, (minimum spend £20, see full terms and conditions on our website). https://www.ourmediashop.com/bbc-science-focus-magazine-pod30 Learn more about your ad choices. Visit podcastchoices.com/adchoices

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