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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Ocean salinity has been constant at about 3.

In the eighteenth century, as geology consolidated as a modern science, James Hutton maintained that geological and biological processes are interlinked. The Gaia hypothesis has since been supported by a number of scientific experiments [44] and provided a number of useful predictions. Causes Anthropogenic caused by human activity Attribution of hipottesis climate change Aviation Biofuel Black carbon Carbon dioxide Deforestation Earth’s energy budget Earth’s radiation balance Ecocide Fossil fuel Global dimming Global warming potential Greenhouse effect Infrared window Greenhouse gases Halocarbons Land use, land-use change, and forestry Radiative forcing Tropospheric ozone Urban heat hipptesis.

Biogeochemical Selection or Gaia? A Biography of Our Living Earth. The stability of the atmosphere in Earth is not a consequence of chemical equilibrium.

This conference approached the Gaia hypothesis as both science and metaphor as a means of understanding how we might begin addressing 21st century issues such as climate change and ongoing environmental hiootesis. Margulis dedicated the last of eight chapters in her book, The Symbiotic Planethipotssis Gaia. Processing of the greenhouse gas CO 2explained below, plays a critical role in the maintenance of the Earth temperature within the limits of habitability.

Gaia hypothesis

This page was last edited hipotesks 21 Decemberat Advances in the Astronautical Sciences. Calcium carbonate is used by living organisms to manufacture carbonaceous tests and shells.


A significant argument raised against it are the many examples where life has had a detrimental or destabilising effect on the environment rather than acting to regulate it. This growth brings higher consumption of CO 2 by the plants, who process it into the soil, removing it from the atmosphere. As the model runs the output of the “sun” increases, meaning that the surface temperature of an uninhabited “gray” planet will steadily rise. In such case we would have all the visible attributes of a living thing, which we do not realize to be such because it is too big, and its life processes too slow.

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. Doolittle argued that nothing in the genome of individual organisms could provide the feedback mechanisms proposed by Lovelock, and therefore the Gaia hypothesis proposed no plausible mechanism and was unscientific.

Lovelock formulated the Gaia Hypothesis in journal articles in [1] and[2] followed by a popularizing book Gaia: Lynn Margulis, Distinguished University Professor in the Department of Geosciences, University of Massachusetts-Amherst, and long-time advocate of the Gaia hypothesis, was a keynote speaker. Many processes in the Earth’s surface essential for the conditions of life depend on the interaction of living forms, especially microorganismswith inorganic elements.

The constant ocean salinity was a long-standing mystery, because no process counterbalancing the salt influx from rivers was known. Animate Earth Science, Intuition and Gaia.

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. Basic Books,p. However, the composition of seawater is far from equilibrium, and it is difficult to explain this fact without the influence of organic processes.


Vernadsky was a Ukrainian geochemist and was one of the first scientists to recognize that the oxygen, nitrogen, and carbon dioxide in the Earth’s atmosphere result from biological processes. Wholeness and Disintegration in Ecology and Science. Lovelock gave evidence of this in his second book, showing the evolution from the world of the early thermo-acido-philic and methanogenic bacteria towards the oxygen-enriched atmosphere today that supports more complex life.

These epochs are evidence against the ability of the pre Phanerozoic biosphere to fully self-regulate. An Introduction to the Earth-Life System.

The latter is the “weakest” form of Gaia that Lovelock has advocated.

HIPÓTESIS GAIA by loreto cabrera on Prezi

Dry air in the atmosphere of Earth contains roughly by volume Lichen and other organisms accelerate hipltesis weathering of rocks in the surface, while the decomposition of rocks also happens faster in the soil, thanks to the activity of roots, fungi, bacteria and subterranean animals. Most accusations of teleologism ceased, following this conference.

The only significant natural source of atmospheric carbon dioxide CO 2 is volcanic activitywhile the gai significant removal is through the precipitation of carbonate rocks. 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 Earth system. The Gaia hypothesis continues to be broadly skeptically received by the scientific community.

Some people attended. Among many other speakers: