I saw a story in the International Herald Tribune (IHT) in February about the worrying trend of disappearing bees, particulalry in the USA. Following on from that story it appears that this phenomenon is not restricted to the USA, a recent report shows that this is also happening in South Western France.
They are also poised to cross the channel this summer according to this report.
To show how the life and work of the humble bee effects all of us, here is a graphic from the IHT. It certainly surprised me! I wonder if there is a similar graphic for the UK?

I also found this report written by two Academics – Mike Edwards and Paul Williams in June 2004.