The Gaia Theory: Scientific Model and Metaphor for the 21st Century

Abstract

This paper introduces the Gaia Theory, a compelling scientific context for understanding life on our planet. The theory asserts that the organic and inorganic components of Earth form a seamless continuum - a single, self-regulating, living system. British scientist, James Lovelock, who was commissioned by NASA to determine whether or not there was life on Mars, developed the Gaia Theory in the 1970's. Ironically, this theory has yielded some of the most ―cutting edge‖ insights into life on Planet Earth. For example, Lovelock found ways in which the Gaian system regulates surface temperature, ocean salinity, and other conditions at levels necessary for life to survive. This paper also includes discussion about the value of the Gaia Theory for environmental educators.