CAT's mission is to inspire people from all walks of life to explore sustainable solutions to all aspects of living, to provide up to date information and residential courses to help turn ideas into reality.

CAT has an extensive database of renewable energy suppliers and installers and has published a wide range of fact sheets.

Toilet systems: Consultancy service and courses on compost toilets, sustainable sewage treatment, renewable energy. Visitor centre features several examples of compost toilets and renewable energy. Publications include 'Lifting the Lid' on compost toilets and 'Sewage Solutions' on wet toilet systems. Both priced £12. 'Septic tanks: an overview' is good if you are installing a flush toilet system.