This week, a wildfire the size of Paris ripped through Southern France, temperatures soared in Spain and an extraordinary UN meeting aimed at reining in the global production of plastic took place in Geneva. But across the ocean in the United States, Trump's MAGA movement is rolling back plans to mitigate climate change. David Wallace-Wells is an opinion writer for the New York Times who wrote the book "The Uninhabitable Earth" and he spoke to Christiane from New York. 

Also on today's show: Kristin Scott Thomas, Director and Actor, “My Mother’s Wedding”; Anna Merlan, Senior Reporter, Mother Jones