Summer in Australia can be very hot, and as our climate continues to warm, heatwaves are expected to become more frequent and more intense. In this episode of Australia Explained, we cover what a heatwave is, why they pose such a significant risk to human health, who is at most risk, and how to best prepare to cope with a heatwave. - 澳洲夏季炎熱，隨著氣候持續變暖，預計熱浪將更頻繁、更強烈。今集將探討甚麼是熱浪，為甚麼熱浪會對人類健康構成如此重大的威脅，哪些人群風險最高，以及如何應對熱浪。