There is no convincing scientific evidence that human release of carbon dioxide, methane, or other greenhouse gasses is causing or will, in the foreseeable future, cause catastrophic heating of the Earth's atmosphere and disruption of the Earth's climate. Moreover, there is substantial scientific evidence that increases in atmospheric carbon dioxide produce many beneficial effects upon the natural plant and animal environments of the Earth.
Dr Martin Sichel Emeritus Professor-Department of Aerospace Engineering, The University of Michigan
Dr.Berken Chang-Professor of Physics Emeritus, California State LA
Dr Edward T. Dugan Associate Professor-Nuclearand Radiological Engineering University of Florida