The scientist at the center of a controversy over fossil-fuel funding for climate research denounced his critics on Monday and said that he would be “happy to comply” with possible additional disclosure requirements from scientific journals publishing his papers.

In his first detailed public statement since the controversy erupted more than a week ago, the scientist, Wei-Hock Soon, a researcher at the Harvard-Smithsonian Center for Astrophysics, complained that he had been the subject of unfair attacks in the press. He ascribed them to “various radical environmental and politically motivated groups.”

Dr. Soon, who is known as Willie, added, “This effort should be seen for what it is: a shameless attempt to silence my scientific research and writings, and to make an example out of me as a warning to any other researcher who may dare question in the slightest their fervently held orthodoxy” on global warming.

Monday’s statement was not released by Dr. Soon’s employer, the Smithsonian Institution, which has responded to the controversy by starting an inquiry into his activities and a review of its disclosure and ethics policies for scientific research.