There is a large population of international students, and minorities are very vocal. The campus is pretty polarized between the activist types and the non-political kids. The Foss/Mary Low side of campus tends to be more politically aware and diverse, or at least more aware of diversity. Social class has been a particular topic of concern lately; many people see Colby as very elitist. All diversity-related issues, though, are actively brought to light. There's been a Racial Awareness Week and a Social Class Awareness Week, both of which had featured lectures, discussions, and (most visibly) chalking on the pathways. There was even a minority sit-in in an attempt to raise awareness on campus. Though racial diversity is not where it should, there is a vast diversity of personalities, and there is no dominate personality type.
The campus is working very hard to create a more diverse atmosphere, and questions of diversity are brought up by vocal minorities and activists. This creates an intense atmosphere sometimes—discussions and demonstrations can feel pretty heated at times. But, continual efforts to introduce more diversity and alleviate tensions are definitely to be applauded.