Collin Peter Collin 
Dictionary of Environment and Ecology [PDF ebook] 
Over 7, 000 terms clearly defined

This dictionary has been revised to include the definitions of over 7, 000 terms from all aspects of ecology and environmental fields, including climate, pollution, waste disposal and energy conservation. ‘An essential addition to the reference shelves of anyone with a professional or personal interest in green issues…a handy reference point with which to touch up the gaps in your eco-literacy.’ — Organic Gardening