Gaia or Medea? The choice is ours - a review of Here On Earth: A New Beginning by Tim Flannery: Allen Lane, 2011: 316 pp., £14.99. Published in the Financial Times, Saturday 5 March 2011.
Earth System Science: Gaia and the human impact - this inaugural T. H. Huxley Lecture was delivered at Imperial College, London on 18 October 2007.
Gaia and the human impact: Earth system science - Lecture to the Annual Conference of The Association for Science Education, University of Birmingham, 4 January 2007. "Change rarely proceeds in curves. It goes in steps and thresholds. Due perhaps to the shortness of our individual lives and our lack of imagination we tend to believe that what we know - the current diversity of life and the climate around us - will only change within narrow limits; and that if nature is allowed to take its course, things will revert to where they were. Unfortunately history gives no foundation for this belief ... "
Are we pushing Gaia too hard? - The 46th Annual Bennett Lecture for the 50th Anniversary of Geology, University of Leicester, February 1 2005. "Gaia is a lady who has remained broadly the same underneath, but can wear many clothes for many weathers and many fashions. She has no particular tenderness for humans. "
Scientists and Gaia - "The Gaia hypothesis is a human observation about the relationship between life and its physical environment work on the surface of the Earth. It at once a very old idea and a very new one. What was first a kind of analogy has now become an integrative factor in modern science." For the Financial Times.
Homage to Gaia - review of "Homage to Gaia", by James Lovelock. "Lovelock's autobiography brings out his single most important characteristic as a scientist: his refusal to accept dogmas in small things or in big, or to establish dogmas of his own..."