Subscribe or Log In to Anytime
Access audio & film from your favourite writers and thinkers
Give the gift of Anytime
Treat someone to a Hay Festival Anytime subscription
Please subscribe to Hay Festival Anytime for access to this content (more details)
Subscribe for £20.00 or log in if you already have a subscription
 

Gabrielle Walker

An Ocean of Air

Hay Festival 2007, 
Through the eyes and lives of its discoverers, the science writer celebrates the natural history of the earth’s atmosphere and reveals how we came to understand air, the true elixir of life.