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Las críticas a la hipótesis Gaia de Lovelock (Lovelock y Margulis , de una teoría Gaia científica partiendo de la hipótesis inicial de Lovelock: Gaia es un. La Tierra es un Organismo Vivo y Sentiente – Es Hora de Dejar de Vivir en La Tierra y Empezar a Cohabitar – Philosophical Implications of The Gaia Theory. The Gaia hypothesis was formulated by the chemist. James Lovelock and The Gaia theory posits that the Earth is a self-regulating complex system involving.

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Daisyworld examines the energy budget of a planet populated by two different types of plants, black daisies and white daisies. A reduced version of the hypothesis has been called “influential Gaia” [11] in “Directed Evolution of the Biosphere: Lynn Margulis joined Lovelock in the effort of fleshing out the initial hypothesis into scientifically proven concepts, contributing her knowledge about how microbes affect the atmosphere and the different layers in the surface of the planet.

Archived from the original on 9 February He also states that most of his critics are biologists but that his hypothesis includes experiments in fields outside biology, and that some self-regulating phenomena may not be mathematically explainable.

Lovelock started defining the idea of a self-regulating Earth controlled by the community of living organisms in Septemberwhile working at the Jet Propulsion Laboratory in California on methods of detecting life on Mars.

These processes establish a global control system that regulates Earth’s surface temperatureatmosphere composition and ocean salinitypowered by the global thermodynamic disequilibrium state of the Hiotesis system. Lovelock states that the initial formulation was based on observation, but still lacked a scientific explanation.

Later, other relationships such as sea creatures producing sulfur and iodine hipptesis approximately the same gaja as required by land creatures emerged and helped bolster the hypothesis.


By the time of the 2nd Chapman Conference on the Gaia Hypothesis, held at Valencia, Spain, on 23 June[51] the situation had changed significantly. Geological history of oxygen. During the s he published works arguing that living organisms could reshape the planet as surely as any physical force. All the atmospheric gases other than noble gases present in the atmosphere are either made by organisms or processed by them.

Coccolithophorides increase the hipotewis cover, hence control the surface temperature, help cool the whole planet and favor precipitations necessary for terrestrial plants.

Archived from the original PDF on Schneider, Stephen Henry Biogeochemical Selection or Gaia? L’ambientalismo nuclearista di James Lovelock. A New Look At Evolution. The web of life: In accentuating the direct competition between individuals for resources as the primary selection mechanism, Darwin and especially his followers created the impression that the environment was simply a static arena”. Its hipoteeis has, however, generated many new and thought provoking hpiotesis. In this view, the atmosphere, the seas and the terrestrial crust would be results of interventions carried out by Gaia through the coevolving diversity of living organisms.

Stephen Jay Gould criticised Gaia as being “a metaphor, not a mechanism. Strong Gaia, Kirchner claimed, was untestable and therefore not scientific.

Gaia hypothesis

Responding to this critique inLovelock stated, “Nowhere in our writings yipotesis we express the idea that planetary self-regulation is purposeful, or involves foresight or planning by the biota “. The only significant natural source of atmospheric carbon dioxide CO 2 is volcanic activitygia the only significant removal is through the precipitation of carbonate rocks. However, the environment is not a static backdrop for evolution, but is heavily influenced by the presence of living organisms.

Damming glacial lakes Desalination Drought tolerance Irrigation investment Rainwater storage Sustainable development Weather modification.

Less accepted versions of the hypothesis claim yaia changes in the biosphere are brought about through the coordination bipotesis living organisms and maintain those conditions through homeostasis.


Also in the turn to the 20th century Aldo Leopoldpioneer in the development of modern environmental ethics and in the movement for wilderness conservation, suggested a living Earth in his biocentric or holistic ethics regarding land. Topics related to the hypothesis include how hilotesis biosphere and the evolution of organisms affect the stability of global temperaturesalinity of seawateratmospheric oxygen levels, the maintenance of a hydrosphere of liquid water and other environmental variables that affect the habitability of Earth.

The Gaia hypothesis has since been supported by a number of scientific experiments [44] and provided a number of useful predictions. Link Published 23 Aprilaccessed 22 August Gaian hypotheses suggest that organisms co-evolve with their environment: The Gaia hypothesis states that the Earth’s atmospheric composition is kept at a dynamically steady state by the presence of life.

Gaia hypothesis – Wikipedia

Retrieved 1 December The flow of carbon dioxide from the atmosphere to the soil is therefore regulated with the help of living beings. Toward a Physiology of Earth.

Ocean salinity has been constant at about 3. Oxygen only began to persist in the atmosphere in small quantities about 50 million years before the start of the Great Oxygenation Event. The hypothesis contends that this system as a whole, called Gaia, seeks a physical and chemical environment optimal for contemporary life.

The Earth is about to catch a morbid fever16 January How does the earth system generate and maintain thermodynamic disequilibrium and what does it imply for the future of the planet? It would appear that the claim that Gaia acts “intentionally” was giaa metaphoric statement in his popular initial book and was not meant to be taken literally.