Erik Hersman and Nigel Snoad discuss technology's role in helping after natural disasters.
BBC World Service
Anna Hill hears about a severe outbreak of foot and mouth in Egypt.
BBC Radio 4 FM only
3/5 Mary Colwell meets a man who has spent his life searching for corals on the Devon coast.
BBC Radio 4
With Laurie Taylor. Including Michelin-starred restaurants and the meaning of dignity.
Britain's sand dunes are running out of time. Tom Heap joins the battle to save them.
Thursday 29 March 2012