EPA Chief Questions CO2 link to Global Warming

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Paul Bledsoe, former climate adviser to President Clinton shares his thoughts on new Head of US Environmental Protection Agency Scott Pruitt's view that carbon dioxide may not be the major cause of global warming. In the latest in the BBC's So I Can Breathe season Vivienne Nunis investigates the health effects of fumes from diesel vehicles in London and Edwin Lane joined a group of joggers in busy Cairo. Plus China approves a series of Trump trademarks - but does it raise questions of a conflict of interest? We hear from the BBC's Juliana Liu in Hong Kong. Plus Lego announces record sales - its chief financial officer John Goodwin talks to presenter Mike Johnson about the future of play. (Image: Herders from the Samburu community, Tony Karumba/AFP/Getty Images)