Mood: The mood of the video appears to be intense and serious, with a hint of mystery. The man's expression suggests a sense of determination or defiance. The overall theme seems to be related to education or social issues, given the chalkboard background.

Environment: The setting appears to be a classroom or educational environment, with a blackboard covered in chalk writing in the background. The atmosphere seems dark and moody, with the man standing in front of the blackboard in a contemplative or assertive pose.