I happened to be listening to BBC Radio 5 yesterday at c14:45 and heard a really good interview with a scientist called Dr Gabrielle Walker who has recently written a book called "An Ocean of Air: A Natural History of the Atmosphere".

The interview is just a lovely piece of radio. I played it to my wife and son yesterday who thought it was wonderful and another guy who I know who heard it live also thought it wonderful.

In total it goes on for perhaps 15 minutes (spanning the news) - if you have the time have a listen and see what you think.

If you go to Simon Mayo Show Listen Again and go forward to about 1:50 mins into the programme the interview starts there.