Ja James Lo Lovelock ck 1919 1919
“science was and is my passion and I wanted to be free to do it unfettered by direction from anyone”
Electron Capture Detector 1000 times more sensitive
“a planetary physician whose patient, the living Earth, complains of fever”
The Gaia paradigm “The earth is more than just a home, it’s a living planet and we are part of it.” James Lovelock
Planetary atmospheres Venus Mars Earth Earth without life as it is CO2 96.5% 95% 98% 0.03% N 3.5 2.7% 1.9% 79% O2 trace 0.13% 0% 21% Source: Lovelock, 1998
Earth is a self-regulating system Source: S. Navarro, 2017
3 evidences that earth regulates itself Oxygen in the atmosphere Global surface temperature Ocean salinity
Oxygen in the atmosphere Source: Pieter Kuiper, 2010
Regulation of the global surface temperature Source: thecitizensofearth.org, 2015
Daisyworld Source: Buddhajeans.com, 2017
Daisyworld Source: http://gingerbooth.com/flash/daisyball/DaisyBall.html, 2017
Regulation of ocean salinity
Criticism Ford Doolittle Richard Dawkins Stephen Jay Gould Lynn Margulis Nothing in the genome Organisms could not A metaphorical description Gaia is not an organism! could provide the feedback interact in concert of Earth processes, not a mechanism Gaia theory mechanism proposed.
From hypothesis to theory Declaration of Amsterdam (2001): "The Earth System behaves as a single, self-regulating system."
The end "You can't run a university unless it's divided into subjects. If you try and teach the whole lot, it becomes a complete mess and the vice-chancellor goes mad, so they have to divide it up. But if you divide it up, you can't understand it." James Lovelock
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