photo credit Nasa / Goddard Space Flight Center / Reto Stöckli Postulada por James Lovelock y apoyada por Lynn Margulis HIPÓTESIS GAIA. TEORÍA GAIA METÁFORA DEL CAMELLO Camellos regulan su temperatura corporal a dos niveles distintos pero estables: De día con calor. Se denomina a esta hipótesis “Gaia” porque es 4. LA IDEA DE LOVELOCK.

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Their replacement by cropland could precipitate a disaster that is global in scale. The hypothesis contends that this system as a whole, called Gaia, hiptesis a physical and chemical environment optimal for contemporary life. Gaia theory has already proved so fruitful in this way that by now it would hardly matter if it were wrong.

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When on the basis of this evidence, I reanimated the view that we were standing on a superorganism rather than just a ball of rock Lovelock, ;it was not well received.

When seeking to act personally in favor of Gaia through moderation, I find it helpful to think of the three deadly Cs: The stability of the atmosphere in Earth is not a consequence of chemical equilibrium. When CO 2 levels rise in the atmosphere the temperature increases and plants grow.

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.

But being a grandfather with eight grandchildren I need to be optimistic. This wholesome view of our planet did hipotrsis persist into the next century.

This gaaia statement of the Gaia hypothesis was more acceptable to the scientific community. Views Read Edit View history. An Introduction to the Earth-Life System. Please review our privacy policy. New Scientistp. Lynn Margulisa microbiologist who collaborated with Lovelock in supporting the Gaia hypothesis, argued inthat ” Darwin ‘s grand vision was not wrong, only incomplete.

Gaia theory forces us to see that they offer much more than this. How does the earth system generate and maintain thermodynamic disequilibrium and what does it imply for the future of the planet?

Gaia evolves through a cybernetic feedback system operated unconsciously by the biotaleading to broad stabilization of the conditions of habitability in a full homeostasis.


The known sources of sodium i. Daisyworld examines the energy budget of a planet populated by two different types of plants, black daisies and white daisies. McIntyreJames Hutton, often known as the father of geology, said in a lecture before the Royal Society of Edinburgh in the s that he thought of the Earth as a superorganism and that its proper study would be by physiology.

Lovelock suggested detecting such combinations in other planets’ atmospheres as a relatively reliable and cheap way to detect life. A geophysiological system always begins with the action of an individual organism.

Environment portal Earth sciences portal Geography portal. L’ambientalismo nuclearista di James Lovelock. In the past 10 years these criticisms have been answered—partly from new evidence and partly from the insight provided by a simple mathematical model called Daisy world.

Because we are city dwellers, we are obsessed with human problems.

As the geologist H. The idea that the Earth is alive may be as old as humankind. Potential effects and issues General Abrupt climate change Hipotesiis event Arctic dipole anomaly Arctic haze Arctic methane emissions Climate change and agriculture Climate change and ecosystems Climate change and lovelovk Climate change and poverty Hipottesis Economics of global warming Effects on plant biodiversity Effects on health Effects on humans Effects on marine mammals Environmental migrant Extinction risk from global warming Fisheries and climate change Forest dieback Industry and society Iris hypothesis Megadrought Ocean acidification Ozone depletion Physical impacts Polar stratospheric cloud Regime shift Retreat of glaciers since Runaway climate change Sea level rise Season creep Shutdown of thermohaline circulation.

You well may ask, So what can I do?

The Earth as a Living Organism – Biodiversity – NCBI Bookshelf

Recently it was suggested [24] that salinity may also be strongly influenced by seawater circulation through hot basaltic rocks, and emerging as hot water vents on mid-ocean ridges. Support Center Support Center.

Wholeness and Disintegration in Ecology and Science. Retrieved 1 December The New York Times Magazine. Topics related to the hypothesis include how the 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.

It has been suggested that the results were predictable because Lovelock and Watson selected examples that produced the responses they desired.

Gaia hypothesis

The major questions were: The flow of carbon dioxide from the atmosphere to the iames is therefore regulated with the help of living beings. Animate Earth Science, Intuition and Gaia.


Mechanical metaphors, according to Abram, lead us to overlook the active or agential quality of living entities, while the organismic metaphorics of the Gaia hypothesis accentuate hiipotesis active agency of both the biota and the biosphere as a whole. Hsue a correspondence author in Strong Gaia, Kirchner claimed, was untestable and therefore not scientific.

The Fabric of Geology. Its study has, however, generated many new and thought provoking questions. If you do this, and if the clinicians are right, then it could be for the personal benefit of your health; at the same time, it might reduce the pressures on the forests of the humid tropics.

Lichen and other organisms accelerate the 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. Oxygen is a reactive compound, and should eventually combine with gases and minerals of the Earth’s atmosphere and crust.

Compositional and other changes associated with the presence of Life”. Less accepted versions of the hypothesis claim that changes in the biosphere are brought about through the coordination of living organisms and maintain those conditions through homeostasis.

For the first time, we have from these new, these geophysiological models a theoretical justification for diversity, for the Rousseau richness of a humid tropical forest, for Darwin’s tangled bank. Currently the increase in human population and the environmental impact of their activities, such as the multiplication of greenhouse gases may cause negative feedbacks in the environment to become positive feedback. Processing of the greenhouse gas CO 2explained below, plays a critical role in the maintenance of the Earth temperature within the limits of habitability.

After initially being largely ignored by most scientists from untilthereafter for a period the initial Gaia hypothesis was criticized by a number of scientists, such as Ford Doolittle[54] Richard Dawkins [55] and Stephen Jay Gould.