Ian Plimer is Professor of Mining Geology at the University of Adelaide. He has published 60 academic papers and six books. His latest book, recently published, is entitled Heaven and Earth – Global Warming: The Missing Science.

Gwyn Prins is Professor of at the London School of Economics and the director of the LSE Mackinder Programme for the Study of Long Wave Events. He has published extensively on climate change issues.

Paul Reiter is Professor of Medical Entomology at the Pasteur Institute in Paris, France, and widely respected specialist in the epidemiology and control of mosquito-borne diseases.

David Whitehouse, who has a doctorate in astrophysics, was successively BBC Science Correspondent and Science Editor BBC News Online. He is the author of a number of books on solar system astronomy and the history of astronomy.

Richard Tol is a Research Professor at the Economic and Social Research Institute, Dublin, Ireland, where he is responsible for the research areas energy and environment. He is an editor of the journal Energy Economics.