Grateful acknowledgement is made to the following sources:
Every effort has been made to contact copyright holders. If any have been inadvertently overlooked the publishers will be pleased to make the necessary arrangements at the first opportunity.
The Open University team:
David Gowing (Department of Biology)
Rachael James (Department of Earth Sciences)
Nancy Dise (Department of Earth Sciences)
Damion Young (Centre for Educational Software)
Gary Tucknott (Science Web and Interactive Multimedia Group)
Steve Best (Graphic Design)
with contributions from many other members of the S216 Module Team.