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2 Definitions

Gaia Hypothesis

For Gaia Hypothesis we have terms and definitions in 2 topics. The topics are Atmospheric Chemistry and Physical Geography.



Gaia Hypothesis (Atmospheric Chemistry)

An hypothesis proposed during the early 1970s by James Lovelock which states that all living organisms have the ability to affect their surroundings such as the atmosphere, lithosphere, and climate to maximize its biological success. The hypothesis connects the evolution and survival of a species to the evolution and conditions of its environment. [Scientists on Gaia; Stephen Schneider et al; MIT Press; Cambridge, Mass.; pages 4-7, 62; 1991.] [Atmospheric Change; Graedel, T. E.; W. H. Freeman and Company; New York; page 418-421; 1993.]


Gaia Hypothesis (Physical Geography)

The Gaia hypothesis states that the temperature and composition of the Earth's surface are actively controlled by life on the planet. It suggests that if changes in the gas composition, temperature or oxidation state of the Earth are induced by astronomical, biological, lithological, or other perturbations, life responds to these changes by growth and metabolism.




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