Aviation Environment Federation - Deals with the adverse environmental impacts of aviation, including noise, air quality, climate change and sustainability issues.
Positive Power - News about renewable energy, survey, free email, search facility and web links. A UK based portal for renewable energies and environmental technology.
The Tree Council - Founded in 1974 to improve the environment in town and country by promoting the planting and conservation of trees and woods.
The Royal Society - Dedicated to recognising excellence in science, furthering the role of science, engineering and technology and promoting public understanding of science.
The Tree Register - Registered charity with database of over 125,000 big, ancient, historical and tall trees in the UK. Some website facilities available to members only.
The Institute of Physics - The site for physics and physicists, including information on Institute membership and activities, online news, books, magazines and journals.
National Institute for Environmental e-Science - Details of its programmes, projects, events, personnel.
Edinburgh International Science Festival - Annual event in early April includes events and shows relating to science and technology. Features exhibitions, workshops, tours, talks, demonstrations and hands-on activities, all aimed at the general public.
Web of Knowledge - Citation and journal database. For academic users, requires authentication and login.
Scotland and Northern Ireland Forum for Environmental Research - Identifies and manages environmental research on behalf of members and stakeholders.
Trinity House - The general lighthouse authority for the UK and Gibraltar. Offering consultancy in the fields of marine pollution, meterological studies, port asset management and renewable resources.
The Naked Scientists Online - Contains science articles, online discussion forum, interviews with famous scientists, book reviews and free MP3 downloads of their science radio shows.
Mapping a future for ancient trees - Co-operative attempt to record and survey Britain's old trees, including the fattest, oldest, and most rotten. Interactive map, search by species, Elm Map Project.
Cryonics UK - Information and discussion of cryonics in the UK.
Cartridges for Charity UK - Accepts empty printer cartridges or old mobile phones for recycling to benefit UK charity partners. Contact details and press release.
British Geological Survey Seismology - Includes reports of earthquakes in the British Isles, from the BGS and from those experiencing the quake.
Sense About Science - A charitable trust to encourage an evidence-based approach to scientific and technological developments. Information and briefing documents about particular issues, along with details of how to get involved.