1.2. JUSTIFICATION OF THE NEED TO DEVELOP ECOLOGICAL RISK ASSESSMENT METHODOLOGY The worldwide demand for oil is increasing, and there appear to be few alternatives to increasing productivity, even from fragile arctic ecosystems. The existing environmental protection methodology, based on environmental impact assessments, is a step in the right direction but is still largely qualitative and subjective. Risk assessment methodology enables managers to more accurately evaluate the tradeoffs between environmental risk and economic considerations. It enables local and Federal environmental agencies to participate in pinpointing the most ecologically sensitive areas in the oil development region. Environmental issues are complex, and designing an environmental database to support risk assessment is a major and costly undertaking. But the cost of cleanup after an environmental disaster such as an oil spill is enormously greater. Therefore, environmental risk assessment should be included in the initial project planning in order to create oil development plans that minimize environmental impact.