Alan Johnston returns to the Palestinian city of Nablus - once a hotbed of militancy.
Mike arrives at the Copenhagen summit to meet delegates, laugh with Santa and alien spot.
1/2 Oana Lungescu investigates secret police files of those imprisoned or persecuted during...
2/2 Jonathon Porritt is in China, where he finds pioneering green solutions.
4/4 Owen Bennett Jones explores five crucial battles in the relationship between Christiani...
1/5 Can population growth be managed if consumption and emission levels are reduced?
Could the peaceful transition have happened without the church and the Polish Pope?
Allan Little returns to the scene of the Bhopal Union Carbide disaster in India.
3/5 Hita Unnikrishnan on why climate change has to be addressed at the individual level.
4/5 The people urging their fellow citizens, and the world, to rethink their travel attitudes.