Noosphere

The Noosphere can be seen as the "sphere of human thought" being derived from the Greek `nous' meaning `mind' in the style of 'atmosphere' and 'biosphere'.

History of this expression:

E. LeRoy?'s Les origines humaines et l'evolution de l'intelligence (1928)

Vladimir I. Vernadsky (1863-1945)

Pierre Teilhard de Chardin (1881-1955)

References:

Paul R. Samson and David Pitt (eds.) "The Biosphere and Noosphere Reader: Global Environment, Society and Change" (ISBN 0-415-16644-6 (amazon.com, search))

Raymond, Eric. [Homesteading the Noosphere]? http://www.tuxedo.org/~esr/writings/cathedral-bazaar/homesteading/ (2000)