Karen Aerni is an Environmental Science professor at Northeastern University rated 4.04/5 by 130 students, with 3.06/5 difficulty and 100.0% who would take them again (TRACE + RateMyProfessors + Reddit, updated July 2026).
Karen Aerni professor reviews and ratings: 4.04/5 from 130 student reviews at Northeastern (100.0% would take again). TRACE + RateMyProfessor + Reddit.
Very helpful in class and led very interesting lectures which helped make the curriculum feel accessible. Grades pretty easy and makes her rubrics for projects very understandable. Participation is very important in her classes, but you can choose to attend through Zoom instead of in person. Hard to reach outside of class except in office hours.ENVR1500 2026-01-08 15:00:17 +0000 UTC
ENVR1400- Goes pretty fast through the slides but if you pay attention you will be fine, and lab is important for this course. She's really nice and personable but takes a while to grade sometimes. Canvas can be unorganized but she will always move due dates back if you express you had online issues. Participation required but you can join on zoom.ENVR1400 2025-11-22 22:47:14 +0000 UTC
The class was great, you got out of it what you put into it. Lecture-heavy, easy homework, professor very understanding, personable and smart. Participation graded but you were able to attend class virtually. Only problem would be that she is a little hard to reach outside of class/by email. overall would recommend and I want to be her friendENVR1500 2026-01-08 14:59:34 +0000 UTC
Loved her class, can be attended online or in person. Lectures are engaging and educational, and in class she is very helpful with questions/concerns. Only issue is she is very difficult to reach outside of class, never got an email back. Many opportunities for your grade, optional extra credit final and projects have super clear rubrics.ENVR1500 2026-01-08 14:57:09 +0000 UTC
Held lectures on zoom and in person at the same time(you can still attend classes while sick in bed), great lecturer and easy to take notes for. Class content was easy. Dr. Aerni was very friendly and helpful in one-on-one interactions, came across as someone who genuinely wants students to learn and enjoy classes.ENVR1500 2025-12-16 20:40:29 +0000 UTC
Karen Aerni has an average rating of 4.04/5 from 130 student reviews. 100.0% of students said they would take them again.
Karen Aerni's classes have a difficulty rating of 3.06/5 based on student reviews.
Karen Aerni has taught ENVR1500, ENVR2500, ENVR1501, EEMB5523, ENVR2501 at Northeastern.
Data updated July 2026.