Must our future be cast in concrete?
As the world becomes more populous, experts say we\u2019re likely to use 25 percent more concrete in the next decade. But concrete is also responsible for eight percent of the planet\u2019s greenhouse gas emissions. \n \nThere are concerns that the industry isn\u2019t taking its carbon footprint seriously enough. So our climate question this week is: Must our future be cast in concrete? \n \nGuests: \nArpad Horvath, professor of civil and environmental engineering at the University of California, Berkley \nProfessor Karen Scrivener, head of Laboratory of Construction Materials at Ecole Polytechnique F\xe9d\xe9rale de Lausanne, Switzerland \nAnupama Kundoo, professor of architecture at the Potsdam School of Architecture, Berlin, and working architect \nSophia Yan, China correspondent for The Telegraph \n \nPresented by Graihagh Jackson and Neal Razzell \nProduced by Alex Lewis \nResearched by Zoe Gelber \nEdited by Emma Rippon