Methods of ensuring ecological and sustainable drainage in an urban environment are discussed in a new guide being published as part of Hydro International's Engineering Nature's Way initiative. Co-authored by Professor Richard Ashley, of EcoFutures , Sue Illman, of Illman Young Landscape architects, and Alex Stephenson, Stormwater Director of Hydro International and chair of the British Water SuDS focus group, Sustainable Drainage Systems (SuDS) in the Urban Landscape looks at Ecosystems Services, Green In