Extreme heat alert: These four states set to swelter above 40°C

Severe heatwave warnings are in place across much of the country, with temperatures set to exceed 40 degrees in at least four states. The weather department has issued alerts for multiple regions in NSW, Victoria, South Australia, and Western Australia, labelling this as the most significant heatwave since the Black Summer. As Australia braces for searing heat, climate expert Dr Surendra Rauniyar from Bureau of Meteorology explains the link between El Niño and climate change.