Environmental Impact Assessment (EIA) is a significant, anticipatory, environmental management tool. International debate focuses on its enhancement to meet the challenges of sustainable development, not least demands for scientifically robust integrated and participative decision-making. This Handbook hopes to improve practice by contributing an international, multidisciplinary, ready-reference source to this debate. This first volume addresses EIA principles, process and methods. Part 1 maps the EIA process and its impact on decision. It positions EIA in the context of sustainable development and relative to other decision tools, including economic valuation. It also positions strategic environmental assessment (SEA) in a similar way. Part 2 addresses the elements of the EIA process and significant impact assessment topics - air, water, ecological, social, risk, landscape and visual - not only in terms of good practice but also methodological evolution. The volume concludes by addressing cumulative impact assessment and SEA methods. Volume 2 provides a unique consideration for EIA implementation and practice - in Europe, Africa, the Far East, South America and North America. It uses a number of project types to provide 'how-to-do' guidance and addresses practice in policy and plan assessment. This book should be ready by legislators, decision makers, economists, developers, industrial managers and consultants involved in this significant field.