As France heats up, an experiment simulating life in 50C aims to get people to take climate change more seriously. Faced with a growing demand for eggs, France looks for ways to boost homegrown production and halt the need for imports. And a look back at the first line of the Paris metro, which opened in 1900.

France just experienced its hottest June since 2003, with several days of extreme heat at the end of the month that left two people dead and slowed the country down – halting work outdoors and closing schools. The heatwave is a taste of what the future might hold, as global warming leads to more extreme weather conditions. The Human Adaptation Institute has created an immersive experience of what life at 50C would be like. Jeanne Richard reports from the mobile lab as it tours France to raise awareness over the need to mitigate and adapt to climate change, one hot individual at a time. (Listen @0')

France is Europe's largest egg producer, yet it's struggling to meet growing demand from people looking for a cheap source of protein. Eggs are now being imported from Ukraine where environmental, health and animal welfare norms are far lower. Alice Richard, head of the National Egg Promotion Committee (CNPO), talks about the need to increase home-grown production and make it easier for farmers to start or expand their farms. Cyril Ernst, campaign manager with Anima, whose mission is to put an end to laying hens in cages, insists any easing of regulations for new farms mustn't be at the expense of animal welfare. (Listen @16'45'')

The first line of the Paris metro opened on 19 July 1900, after decades of wrangling between the capital and the state slowed down its development. Today the metro system is 245kms long, with 16 lines covering the entire city and beyond. (Listen @10'30'')

Episode mixed by Cécile Pompeani

Spotlight on France is a podcast from Radio France International. Find us on rfienglish.com, Apple podcasts (link here), Spotify (link here) or your favourite podcast app (pod.link/1573769878).