You might find the programme referred to in the link of interest. Just click on the words above. I've reserved three tickets and as far as I can see tickets are still available. ( checked today 20.11.11).
This is a BBC recording on November 28th at 6.30 pm for a Radio 4 programme debating world population issues and their effect on Wildlife.The programme will be broadcast on 23rd Dec 20.00 hrs and repeated on the 24th
Its part of a series which I regret I havent picked up on before called "Saving Species" and this particular programme is titled Population and the Natural World.Its produced by Mary Colwell who amongst other things writes the Blog at http://marycolwell.blogspot.com/ or click.here.