There are numerous free websites that can assist with research related to environmental law. Also note the entries under "Legal Blogs ('Blawgs') and Current Awareness" for electronic monitoring of environmental law developments around the world.
The purpose of this website, jointly administered by several international organizations (FAO, IUCN, and UNEP) is to provide the "most comprehensive possible global source of information on environmental law." The site includes a database of national environmental legislation.
A collection of links to the State of Illinois's environmental protection legal infrastructure, including the text of the Illinois Environmental Protection Act.
The Abrams Environmental Law clinic attempts to solve some of the most pressing environmental problems throughout Chicago, the State of Illinois, and the Great Lakes region. On behalf of clients, the clinic challenges those who pollute illegally, fights for stricter permits, advocates for changes to regulations and laws, holds environmental agencies accountable, and develops innovative approaches for improving the environment.
The Brazil-American Institute for Law and Environment (BAILE) is a non-profit research, teaching and policy center dedicated to building and fostering the relationship between the United States and Brazil in their shared goal of environmental protection and sustainable development.
The Center for International Environmental Law is a public nonprofit environmental law organization which aims to "strengthen and use international law to protect the environment, promote human health, and ensure a environmental friendly society."
A Congressional Research Service (CRS) Report on Climate Change Attribution, which is the study of whether, or to what degree, human influence may have
contributed to extreme climate or weather events.