Gaia Hypothesis

The Gaia hypothesis, also known as Gaia theory or Gaia principle, proposes that organisms interact with their inorganic surroundings on Earth to form a self-regulating, complex system that contributes to maintaining the conditions for life on the planet. Topics of interest include how the biosphere and the evolution of life forms affect the stability of global temperature, ocean salinity, oxygen in the atmosphere and other environmental variables that affect the habitability of Earth.

The hypothesis was formulated by the scientist James Lovelock and co-developed by the microbiologist Lynn Margulis in the 1970s. While early versions of the hypothesis were criticized for being teleological and contradicting principles of natural selection, later refinements have resulted in ideas highlighted by the Gaia Hypothesis being used in disciplines such as geophysiology, Earth system science, biogeochemistry, systems ecology, and climate science. In 2006, the Geological Society of London awarded Lovelock the Wollaston Medal largely for his work on the Gaia theory.

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Sustainable Retreat - Career - Gaia
... Further information Gaia hypothesis First formulated by Lovelock during the 1960s as a result of work for NASA concerned with detecting life on Mars, the Gaia hypothesis ... Named after the Greek goddess Gaia at the suggestion of novelist William Golding, the hypothesis postulates that the biosphere has a regulatory effect on the Earth's ... While the Gaia hypothesis was readily accepted by many in the environmentalist community, it has not been widely accepted within the scientific community ...
History Of Evolutionary Thought - Unconventional Evolutionary Theory - Gaia Hypothesis
... ideas have been seen by advocates of the Gaia theory proposed by James Lovelock, which holds that the living and nonliving parts of Earth can be viewed as a complex interacting system ... The Gaia hypothesis has also been viewed by Lynn Margulis and others as an extension of endosymbiosis and exosymbiosis ... This modified hypothesis postulates that all living things have a regulatory effect on the Earth's environment that promotes life overall ...
Homeorhesis - Gaia Hypothesis
... In ecology the concept is important as an element of the Gaia hypothesis, where the system under consideration is the ecological balance of different forms of life on the ... It was Lynn Margulis, the coauthor of Gaia hypothesis, who wrote in particular that only homeorhetic and not homeostatic balances are involved in the theory ...
Gaia Hypothesis - History - Fourth Gaia Conference
... A fourth international conference on the Gaia Theory, sponsored by the Northern Virginia Regional Park Authority and others, was held in October 2006 at the Arlington, VA campus of George ... Chief Naturalist, for NVRPA, and long-time Gaia Theory proponent, organized the event ... of Massachusetts-Amherst, and long-time advocate of the Gaia Theory, was a keynote speaker ...

Famous quotes containing the word hypothesis:

    The hypothesis I wish to advance is that ... the language of morality is in ... grave disorder.... What we possess, if this is true, are the fragments of a conceptual scheme, parts of which now lack those contexts from which their significance derived. We possess indeed simulacra of morality, we continue to use many of the key expressions. But we have—very largely if not entirely—lost our comprehension, both theoretical and practical, of morality.
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