Not all climatologists have degrees titled climatology, and not all paleoclimatologists have degrees titled paleoclimatology. In many cases they have degrees in related fields. The expertize of a researcher and their field of work is more determined by the research they publish than the name of the degree they took. For example William Ruddiman is a well known paleoclimatologist, but his Ph.D. was in Marine Geology.
Both Hartman and Brooks are climatologists, with Brooks also being a paleoclimatologist by the nature of his published research in ice cores and distant climate changes. Hartman teaches Climatology, has written a textbook on climatology and has also published many on it.
That is what Hartman has done.
Some titles of published research:
The General Circulation of the Atmosphere and its Variability
Radiative and Convective Driving of Tropical High Clouds
Influence of doubled CO2 on ozone via changes in the Brewer-Dobson Circulation
Changes in the strength of the Brewer-Dobson Circulation in a simple AGCM
The life cycle of the Northern Hemisphere sudden stratospheric warmings
Cloud-radiative forcing and climate: Insights from the Earth Radiation Budget Experiment.
I don't dispute that he has done a lot and knows a lot. He does not, however, have the credentials indicating any particular expertise in the field. Geophysical fluid dynamics and mechanical engineering are not majors in which people focus much on the climate. I am not attempting to discredit him as having sufficient expertise to contribute to the debate. I do question whether he can be considered a true expert in paleoclimatology. In my lifetime I have signed onto several papers and projects for which I had expertise to contribute to a portion of it, but could not claim to be an expert on the subjects overall.[/QUOTE]
(Re people Foxfyre considers to be experts on climatology/paleoclimatory) Can you give five examples of such people? I don't honestly know what kind of people you are thinking of.
Somewhere I have a list of people I have read over the years, but for the life of me I can't find it now. Several of the people on that list are on the following Wikipedia list, however. While I don't use Wikipedia as an authoritative source for anything, it is useful in providing names, places, keywords, etc. that are useful in further research. Most of the names listed here are among those I respect in having expertise in certain fields useful in the global warming debate, but I would not consider them to be climatologists. There are probably at least five, however, that I consider to be bonafide climatologists.
http://en.wikipedia.org/wiki/List_o...tream_scientific_assessment_of_global_warming