Wallace Broecker, a professor at Columbia University in New York, speaking during the Balzan Prize ceremony in Rome in 2008. Broecker, a climate scientist who popularized the term "global warming," died Monday.
The Alma Mater statue on the Columbia University campus in New York City. The university has released an initial report on its historical ties to slavery in America.
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Ian Bradley-Perrin (left) and fellow graduate student Olga Brudastova have been active in the campaign to unionize grad students who work as teaching and research assistants at Columbia University.
Thousands gathered on the National Mall last week to protest the deaths of Eric Garner and Michael Brown. Some law students say their involvement in the protests means their exams should be postponed.
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