The British Broadcasting Corporation (BBC) World Service is the world's leading international broadcaster. Surveys indicate that it is regarded, by its listeners and viewers around the globe, as the most trusted broadcaster compared to its local, national and international rivals. Both World Service Radio and World Service Television have been at the forefront of broadcasting on sustainable development and environment issues. A good example of this is the BBC World Service Radio Education Department's major initiative Green World. This programme involved the creation and transmission of 25 series of radio programmes, produced in 22 languages, which examined the hopes and fears for the environment together with possible solutions - numbering some 249 individual programmes, covering 40 countries. The Green World initiative was on air for four months between September and December 1996. As a result, vital information was conveyed to millions of listeners who otherwise have little or no chance of accessing such information from any other source. Green World has received support from international organizations and individuals such as Jonathon Porritt and David Attenborough - both Global 500 winners. More than 50,000 special leaflets were mailed to environmental agencies and NGOs and the project was also promoted through the Internet. Feedback from listeners already suggests a very positive response to the various series, and many NGOs are now using copies of the programmes for their own educational and awareness training.BBC World Service Education Department