The sad fate of the orang-utan.
Scientist Bjorn Lomborg argues against the claims of environmentalists.
The destruction of coral by global warming.
With George Alagiah.
Will Johannesburg make any difference to the world's problems? Repeated tomorrow at 11.20pm on BBC2
The idiosyncratic Icelander performs at London's Royal Opera House in 2001.
Singer and actress Bjork in conversation.
A Namibian initiative to revitalise tourism and wildlife.
