Justin Rowlatt asks what will happen if China overtakes America as the world's economic superpower. Justin sees China's impact on industry in Rio and the Amazonian environment. Show more
Discover 11,128,835 listings and 278,128 playable programmes from the BBC
Justin Rowlatt asks what will happen if China overtakes America as the world's economic superpower. Justin sees China's impact on industry in Rio and the Amazonian environment. Show more