Book excerpt: Few of us have what it takes to go 'all the way' on the green scale. Yet as fears about the food chain, climate change, plummeting biodiversity and the sustainability of our current lifestyles take hold, wouldn't it be good to be clear about our range of options? Whether you are pondering bicycles or baths, holidays or heating, pets or pasta, washing dishes or wine, Shades of Green is the book for you. It's an easy-to-use, A-Z guide which sets out your choices on a scale from 'completely green' to 'not even a little bit green'. No preaching. No finger-wagging. Whether you're an eco-warrior or a planet-trasher or, like most of us, something in between, Shades of Green will give you all you need to know so you can choose what suits you best. This is essential and often surprising reading.