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Environmental Science

Use this guide for help in your environmental science courses and assignments.

This Guide

This guide will help you find the resources you need for your environmental science classes. If you have any questions or need assistance at any time, ask a librarian! 

Search the DU Online Catalog

Locating Print Books

Books are arranged by call number, indicated by the blue arrow in the image below. Be sure to check the status of the book, too. If it says "available," the book is on the shelf. If the book is checked out, the status will say "checked out."

Books with call numbers A - N are on the first floor of the library.
Books with call number P - Z are on the second floor of the library.

Call numbers are in the Library of Congress system. Each letter corresponds to a certain subject. For a list of letters and their subjects, see

Reference books, print periodicals, movies and music are on the lower level of the library.

Create an I-Share Account

From this video you will learn how to borrow books from I-Share and sign up for your account. 

Finding Books Using I-Share

From this video you will learn how to locate books from other libraries in I-Share through the I-Share catalog.