29 degrees expected in Tarbes, in the south-west of France, this afternoon, 24° in Marseille and Lille, 23° in Paris. The country is experiencing, in this month of October, a new heat wave in the continuity of an extreme year. To talk about it, Françoise Vimeux, climatologist at the Institute of Research for Development (IRD) and specialist in climate change, is the guest of RFI’s midday.