Comment by McCoy_Pauley

Clojure is more like scheme in that it only has a one scope environment. Common Lisp (and Lisp) are defined by having 2 scope in the environment. One scope for the functions and one scope for variables, if I remember correctly. An easy way to learn your way around lisp is to read and work through Graham's essay "Roots of Lisp": http://paulgraham.com/rootsoflisp.html