05:06Newsday23/09/2021 04:06 GMT : UK PM calls for radical action on climate changeBBC World Service Duration: 50 minutes Thu 23rd Sep 2021, 05:06 on BBC World Service East and Southern AfricaAvailable for over a yearListen nowGlobal warming puts humanity at a turning point, warns UK PM Boris Johnson. Show more GenresNewsFormatsMagazines & ReviewsBrandNewsday Source: BBC Online