William O’Keefe, at the time a leader of the Global Climate Coalition, said in a telephone interview that the group’s leadership had not been aware of a gap between the public campaign and the advisers’ views. Mr. O’Keefe said the coalition’s leaders had felt that the scientific uncertainty justified a cautious approach to addressing cuts in greenhouse gases.

The coalition disbanded in 2002, but some members, including the National Association of Manufacturers and the American Petroleum Institute, continue to lobby against any law or treaty that would sharply curb emissions. Others, like Exxon Mobil, now recognize a human contribution to global warming and have largely dropped financial support to groups challenging the science.

Documents drawn up by the coalition’s advisers were provided to lawyers by the Association of International Automobile Manufacturers, a coalition member, during the discovery process in a lawsuit that the auto industry filed in 2007 against the State of California’s efforts to limit vehicles’ greenhouse gas emissions. The documents included drafts of a primer written for the coalition by its technical advisory committee, as well as minutes of the advisers’ meetings.

The documents were recently sent to The New York Times by a lawyer for environmental groups that sided with the state. The lawyer, eager to maintain a cordial relationship with the court, insisted on anonymity because the litigation is continuing.

The advisory committee was led by Leonard S. Bernstein, a chemical engineer and climate expert then at the Mobil Corporation. At the time the committee’s primer was drawn up, policy makers in the United States and abroad were arguing over the scope of the international climate-change agreement that in 1997 became the Kyoto Protocol.

The primer rejected the idea that mounting evidence already suggested that human activities were warming the climate, as a 1995 report by the United Nations Intergovernmental Panel on Climate Change had concluded. (In a report in 2007, the panel concluded with near certainty that most recent warming had been caused by humans.)

Yet the primer also found unpersuasive the arguments being used by skeptics, including the possibility that temperatures were only appearing to rise because of flawed climate records.