Here are some helpful electronic resources for research on international environmental governance. There are many others -- so please treat the list only as a starting point. Some descriptions (in whole or part) are taken from the web sources.
(1) International Institute for Sustainable Development, Reporting Services "Linkages"
News, information and analysis on international environmental and sustainable development negotiations and policy making. The Earth Negotiations Bulletin provides coverage of international negotiations on over two dozen international environmental issues.
(2) International Environmental Agreements Database Project
A database on international environmental agreements, with membership and performance data. This resource also provides a list of related literature.
(3) ECOLEX
http://www.ecolex.org/start.php
A database on domestic and international environmental law, with texts of international agreements and cross-national domestic legislation.
(4) FAOLEX
http://faolex.fao.org/faolex/index.htm
FAOLEX is a comprehensive and up-to-date computerized legislative database, one of the world's largest electronic collection of national laws and regulations on food, agriculture and renewable natural resources. This is operated by the United Nations Food and Agriculture Organization.
(5) Environmental Treaties and Resources Indicators (ENTRI)
http://sedac.ciesin.columbia.edu/entri/
The Environmental Treaties and Resource Indicators (ENTRI) Query Service is a comprehensive web-based application for accessing environmental treaty texts and treaty status data such as signatories, parties, former parties (if applicable), year of agreement and enforcement and other related information.
(6) International Freshwater Rivers Database
http://www.transboundarywaters.orst.edu/database/interfreshtreatdata.html
A searchable database of summaries and/or the full text of more than 400 international, freshwater-related agreements, covering the years 1820 to 2007. Documents are coded by the basin and countries involved, date signed, treaty topic, allocation measures, conflict resolution mechanisms, and non-water linkages.
(7) United Nations Treaty Collection
Select treaties, including ones covering the environment.
(8) World Bank Projects Database
This categorized database includes the litany of projects funded by the World Bank, including but not limited to projects on the natural environment.
(9) Global Environmental Facility Projects List
http://www.thegef.org/gef/project_list
This database provides details on the projects funded by the Global Environmental Facility, which is the financing mechanism of several global environmental treaty regimes.
(10) Clean Development Mechanism, United Nations Framework Convention on Climate Change
http://cdm.unfccc.int/Projects/projsearch.html
This is a database of the projects funded and registered under the Kyoto Protocol's Clean Development Mechanism.