How well regarded is Northwestern's environmental science program?

Also, if I want to start my own environmentally friendly business in the future, should I consider majoring in economics and take the ISEN courses instead of majoring in environmental sciences? (I got accepted into the 5 year dual degree program for the school of music and school of arts and sciences)

See below (new program):

http://isen.northwestern.edu/ubben-program-for-climate-and-carbon-science

@Boothie007 thank you for the link. To clarify, you don’t have to be an environmental science major to take ISEN courses right?

No, you don’t. Don’t sweat the same too much. A lot of these classes are intro bio classes. There are also a lot of upper level anthropology classes that you wouldn’t be taking unless that’s truly what you want to study.

http://isen.northwestern.edu/undergraduate-courses

This field is probably the most multidisciplinary and the least defined. I never heard of anyone saying “XYZ is known for environmental science”. Stanford is probably the only school I can think of simply because it is among the best in all the departments/fields in which you’d take classes (biology, chemistry, environmental engineering, earth sciences, energy, policy etc).