CHOTEAU, Mont. — School authorities’ cancellation of a talk that a Nobel laureate climate researcher was to have given to high school students has deeply divided this small farming and ranching town at the base of the east side of the Rocky Mountains. The scholar, Steven W. Running, a professor of ecology at the University of Montana, was scheduled to speak to about 130 students here last Thursday about his career and the global changes occurring because of the earth’s warming. Dr. Running was a lead author of a global warming report by the Intergovernmental Panel on Climate Change, the...
