Petroleum and Coal
A search of 22,000 academic journals shows that Gray has never been published in a peer-reviewed journal on the subject of climate change. Gray has published peer-reviewed scientific work on coal with the last article being published 17 years ago.

Gray and the NRSP
Listed as a member of the Scientific Advisory Committee for the Natural Resource Stewardship Project (NRSP), a lobby organization that refuses to disclose it's funding sources. The NRSP is led by executive director Tom Harris and Dr. Tim Ball. An Oct. 16, 2006 CanWest Global news article on who funds the NRSP, it states that "a confidentiality agreement doesn't allow him [Tom Harris] to say whether energy companies are funding his group."

Gray, the New Zealand Climate Coalition and the Navy
Gray is a founding member of a new organizaton calling itself "The New Zealand Climate Science Coalition." Brought together in May, '06, the NZ Coalition states that its main goals are: to publish and distribute papers and commentaries produced by members of the Coalition; to audit statements by other organizations, both in New Zealand and overseas, which are published in New Zealand, or are expected to influence New Zealand public policy and public opinion, and; to audit the forthcoming IPCC report, either on its own, or through the Asia Pacific Climate Science Coalition, or equivalent organization, if one has been established in time.

The chairman of the NZ Coalition is Rear Admiral Jack Welch, a retired member of the New Zealand Navy.

Author of the "NZ Climate Enviro Truth" newsletter
Gray publishes a newsletter called the NZ Climate and Envirotruth.

Gray and the Frontier Centre for Public Policy
Published a policy paper in 2001 for a Canadian think tank called "The Frontier Centre for Public Policy." The FCPP has held lunch seminars on global warming with Tim Ball, a well-known global warming "skeptic."