Dr James Lovelock: Formulation of the Gaia Hypothesis
Lovelock realized this back in the 1960s, and this spawned his Gaia Hypothesis. He knew that CO2, along with H2O, is a major greenhouse gas in Earth’s present-day atmosphere. He was also aware that atmospheric CO2 levels can vary with time as a consequence of imbalances in the global carbon cycle.
02/01/2018 · Dr James Lovelock Gaia ..
first met James Lovelock in 1988 at a conference on his controversial Gaia Hypothesis that was sponsored by the American Geophysical Union. Gaia, to remind you, was the mythical Greek goddess who embodied Mother Earth. The Gaia Hypothesis is the idea that life, or Gaia, plays a critical role in maintaining Earth’s habitability, including its oxygen-rich atmosphere, the salinity of its oceans, and its relatively stable climate. In the late 1960s, Lovelock had postulated that particular control mechanisms require feedback loops to ensure stability. Indeed, Lovelock initially called his theory the “Earth feedback hypothesis,” but changed it to the more mythical title following a suggestion from the novelist William Golding, who happened to live in the same English town.
Firstly we examinea representative selection of writings, quotations andother references, relating to the two principal researchers and proponents of thehypothesis, Dr James Lovelock and Dr.
James lovelock gaia hypothesis book by Janet Ford - issuu
Some biologists characterized the Gaia Hypothesis as being teleological, or assigning human characteristics to inanimate objects. Lovelock attempted to counter the criticism with a parable about a fictitious planet he named “Daisyworld,” which maintained a stable surface temperature just because of the nature of the daisy growth curve, which optimizes at a certain temperature. (Lovelock owns an estate in the English countryside and has long been proud of his ability to cultivate daisies and other native plants on his farm.) He was at least partly correct: One can certainly stabilize a planet’s climate if it depends entirely on the albedo feedback provided by black or white daisies. Indeed, we use Daisyworld as a teaching tool in an introductory Earth science class that I teach at Penn State. This does not, however, necessarily imply that the biota stabilize Earth’s climate, which rests more strongly on the concentrations of various greenhouse gases than it does on surface albedo.
James lovelock and the gaia hypothesis - sport …
Lovelock focused on the organic carbon cycle, in which plants and algae use CO2 and H2O to create organic matter (CH2O) and oxygen (O2) by way of photosynthesis. This process is reversed through the process of respiration, which is carried out by both animals and plants, and by aerobic decay, which is carried out by bacteria. With this cycle in mind, Lovelock hypothesized that atmospheric CO2 levels were much higher on the early Earth, and this created additional greenhouse effect that helped to offset the faint young sun. Then, as the sun gradually brightened over time, plants and algae drew CO2 out of the atmosphere at just the right rate to counter the brightening sun. This, then, was Gaia. Earth’s biota regulated the atmospheric CO2 content over time, stabilizing the climate and ensuring their own continued existence.
James Lovelock | Gaia hypothesis | Mediander | Topics
For, in spite of our scientific differences, I’ve always admired Jim Lovelock. He was, and still is, a truly fresh thinker, and he presents his ideas eloquently, both in his talks and books. I have particularly liked his comparison of Earth to a giant redwood tree2: 99 percent of a redwood is dead, and only the thin, outside layer—the bark—is alive, and yet the tree itself is most certainly alive. Similarly, Earth is mostly inanimate rock, yet its thin layer at the surface—the biosphere—is alive, or at least filled with life. Might we not also think of the planet itself as being alive? It’s a thoughtful analogy and a good example of why the Gaia Hypothesis has attracted devoted followers, and why Jim has been a source of inspiration to environmentalism worldwide. While he still believes in Gaia, he does not think she will save us from our follies. If Gaia pushes us toward a better understanding of how we are tampering with Earth’s present climate, it will remain a very important hypothesis indeed.
The Gaia Hypothesis - Lovelock & Margulis - Index to …
Welcome to the personal website of James Lovelock, originator of Gaia theory, inventor of the electron capture detector (which made possible the detection of an analysis of solomon gursky was here by mordecai richler CFCs an analysis of the series of pamphlets and .