This category includes websites related to the natural, scientific, and environmental aspects of either the entire county or more than one locality within in. It includes information about the natural environment, environmental problems, and scientific activities specific to this county.
Formed to protect the public from the harmful effects of air pollution. Includes mission statement, related links, and contact information.
Photos, sounds, and descriptions of local birds, descriptions of popular bird-watching spots, bird lifecycle information, bird search, and guestbook.
A program designed to strengthen U.S. beach water protection programs and water quality standards, better inform the public and promote scientific research. Includes historical data for county beaches.
Technical, financial and educational assistance to help both rural and urban communities conserve, protect, and restore natural resources. Contains resource listings, district description and information, related links and contact information.
Non-profit group acting to preserve wetlands and floodplains. Information about current concerns.
Events, newsletters, skywatching information, resources, science news, and membership information.
Serves as a testbed for developing technologies for computational ecology, and providing a suite of model simulation capabilities for the bay. Includes bay models and applications, San Diego Bay Bibliography search, history of the bay, and information about the Interagency Water Quality Panel.
Dedicated to the principal that protecting California's precious coastal waters is the job of every citizen. Includes program listing, membership information, calendar of events, and listing of current cases in litigation.
Covers regional water quality and rights regulation, board meetings, laws, funding, watershed management, enforcement, citizen involvement, news and education.
Conducts wildlife monitoring and research, and offers outdoor and environmental education programs. Events, projects, and profiles of team members.
Resource of links to oceanic data, including waves, water, weather, tides, surf cams, and maps. Provided by the director of Scripps Institution of Oceanography Library.
Information about natural open space park planned for the San Dieguito River Valley. The park will someday extend from the ocean at Del Mar to Volcan Mountain, just north of Julian.
Current projects, committee information and contacts, and related publications (PDF format).
Serves both San Diego and Imperial Counties. Events calendar, environmental issues, newsletters, and groups.
Includes mission, project descriptions, news, events, resource links, and contact information.
Conservation and restoration of the area's natural ecosystems. Includes mission statement, programs and events listings, field trips, conservation notes, and contact information.
Home of the Tijuana River National Estuarine Research Reserve and the Tijuana Slough National Wildlife Refuge, located in Border Field State Park. Includes information about events, visitor center, and activities.
Includes history of the mountain, photos and descriptions of various areas, accomplishments and "to do" lists, and donation information.
Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us