Scire Gaea is the name of a resident in the Second Life™ virtual world. It is basically a fractured classic Latin name, with "scire" meaning to know, and Gaea being the Earth taken as a whole ecological system. Note that Gaia is the name of the mythological goddess of the Earth. However, the two words are almost the same, and used in the same way. The sense that it is the ecological system does not date from ancient times -- it was coined by James Lovelock. I believe he preferred the Gaia spelling.