I chose my major based upon my interest to science and the environment. CNR offers a wide range of science majors which suited me well; so as a result, I chose two to double major in. Choosing MEB and ES wasn't too difficult a decision as many classes overlap and I will get a good blend of biological, physical and social sciences courses between the two majors. Information about MEB and ES can be found at the respective websites: http://espm.berkeley.edu/ugmajors/MEB/meb.html
http://environmentalsciences.berkeley.edu/index.html