7/8 An exploration of the profound effect that man is having on the Mediterranean Sea. (R)
BBC Two Northern Ireland only
Sir Tim Berners-Lee discusses monitoring the impact of the web.
BBC World Service
A drought in Spain means less olive oil will be produced this year.
BBC Radio 4
8/12 Scotland's well-known walker Cameron McNeish heads out into the hills. (R)
BBC Two Scotland only
9/12 Scotland's well-known walker Cameron McNeish takes a wild walk on Beinn Tianavaig.
Gay-straight friendships, and how students approach alcohol. With Laurie Taylor.
1/6 Sal an Mara looks at the lives of those dependent on and influenced by the sea. (R)
Conor Woodman asks how farmed Scottish salmon production can increase by 50% sustainably.
BBC Radio 4 FM only
How rocketeer Alan Bond and two colleagues built a new spacecraft - Skylon.
1/16 The life story of Titus, a silverback gorilla living in Rwanda's Virunga Mountains. (R)
Chief Rabbi Lord Sacks meets three leading non-believing scientists.
BBC One except Scotland
BBC One Scotland only
4/6 Upgrading the tube is not easy, with both new trains and new signals causing problems. (R)
How rocketeer Alan Bond and two colleagues built a new spacecraft - Skylon. (R)
Thursday 13 September 2012