Definition
The biosphere is the broadest level of ecological study, the global sum of all ecosystems.
Development
In this wiki (TheTransitioner.org) the word biosphere sometimes is used in discussion around the
noosphere and the
physiosphere. The meaning is the same, however, one can understand that the biosphere is a particular level of organization that transcends and includes the
physiosphere and transcended and included by the
noosphere.
Discussion
Links and references
http://en.wikipedia.org/wiki/Ecosystem
The above definition was taken from the 1st sentence of the definition on Wikipedia for biosphere on September 29, 2008. In the broadest sense of the word, this is consistent with other sources.
Links in TheTransitioner
External links
References