[FARNIENTE] What is a heatwave?

This summer, relax and learn with Do You Really Know! It's time to learn all about the concepts, words and expressions that surround the summer season! What is a heatwave? We’re experiencing more intense and frequent heatwaves than ever before, and it’s one of the most tangible effects of climate change. These summer periods of extreme heat are a threat to the elderly, children and the poor. To meet the World Meteorological Organization’s definition of a heatwave, the period must last 5 days or longer. The daily maximum temperature must also be at least 5° higher than the average maximum temperature. This means the requirements can vary by region. Some nations have their own definition of a heatwave. For example, the UK’s Met Office uses a system called Heat Health Watch. To determine whether a heatwave is occurring, the maximum daytime temperature and minimum nighttime temperature are compared to regional thresholds. A four-level system is used to score each Local Authority area, with Level 4 being the highest.  So what actually causes a heatwave then? What are the guidelines? Who has the greater risks? In under 3 minutes, we answer your questions ! To listen to the last episodes, you can click here : Why do we get verrucas? What is climate shadow, the newest way to measure your impact on global warming? Why do our bodies need magnesium? A podcast written and realised by Joseph Chance. In partnership with upday UK. Learn more about your ad choices. Visit megaphone.fm/adchoices

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