Research in Environmental Studies requires that you take an interdisciplinary approach, exploring science, politics, economics, culture, etc. all at the same time.
Following is a list of resources that are useful for Environmental Studies research:
The encyclopaedic dictionary of environmental change
GE10 .E534 2001 Science Reference
The environment A to Z
GE10 .H67 2001 Leyburn Reference
Environmental literature : an encyclopedia of works, authors, and themes
GE35 .E58 1999 Leyburn 4
Environmental education in the 21st century : theory, practice, progress and promise
GE70 .P33 1998 Science Reserves
Pollution A to Z
Encyclopedia of Earth Sciences
Little Green Data Book
Annual Review of Environment and Resources
Environmental Sciences and Pollution Management
ERIC (Education Resources Information Center)
General Environmental Studies
EPA National Publications Catalog
National Library for the Environment
NEPIS (National Environmental Publications Information System)
International Institute for Environment and Development
UN Environmental Programme Country Profiles
Wildlife
DuckData (USGS)
Invasive Species Information Node
Climate & Atmosphere
Carbon Dioxide Information Analysis Center
Water
Chesapeake Bay Grey Literature
Marine and Ocean Science ePrints Archive @ Plymouth
Repository@NOAA (no longer available)
Pollution and Toxicity
Environmental Contaminants Encyclopedia
IRIS (Integrated Risk Information Systems)
Repository@NOAA (no longer available)
Economics and Politics
National Center for Environmental Economics
Worldbank Environmental Resources
UN Division for Sustainable Development
EarthTrends Economics, Business and the Environment Database
Education
EE-Link (Environmental Education on the Internet)
Other Grey Literature Clearinghouses
Library of Congress Environmental Studies eResources
science.gov: Environment and Environmental Quality Resources