Ecology vs environmental science?

<p>I am a freshman in college currently trying to figure out my major. I know I want to do either ecology or environmental science, but I'm not really sure how the two differ. I am interested in the effects us humans cause on the environment. After college, I want to study how human activities hurt the environment and what measures we can take to live sustainably. Does anyone have insight into the differences between the two fields and/or what major would best fit my interests and goals? Thanks</p>