A 1996 article in "The New York Times" included the comments of several other experts. Jerry D. Mahlman, director of the Geophysical Fluid Dynamics Laboratory, did not accept Lindzen's assessment of the science, and said that Lindzen had "sacrificed his luminosity by taking a stand that most of us feel is scientifically unsound." Mahlman did, however, admit that Lindzen was a "formidable opponent". William Gray of Colorado State University basically agreed with Lindzen, describing him as "courageous". He said, "A lot of my older colleagues are very skeptical on the global warming thing". He added that while he regarded some of Lindzen's views as flawed, he said that, "across the board he's generally very good". John Wallace of the University of Washington agreed with Lindzen that progress in climate change science had been exaggerated, but said there are "relatively few scientists who are as skeptical of the whole thing as Dick is".