First broadcast: on BBC HDLatest broadcast: on BBC One Wales
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
First broadcast: on BBC HDLatest broadcast: on BBC One Wales
Justin Rowlatt investigates what the world will be like if China overtakes America as the world's economic superpower. He looks at the phenomenon of Chinese migration to Africa. Show more
