Roy W. Spencer
- Ph.D., Meteorology, University of Wisconsin-Madison (1981). 
Prime Minister Justin Trudeau confirmed Wednesday the federal government will meet with Indigenous leaders and premiers in Vancouver in early March in the hopes of laying out the framework for a...
Karlen is a retired professor in the department of Physical Geography and Quaternary Geology from Stockholm University.
According to the NRSP, Clark completed his graduate studies at the University of Waterloo and at the Université de Paris Sud (Orsay) in isotope hydrogeology and paleoclimatology. 
Clark is a professor in the Department of Earth Sciences at the University of Ottawa.