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Published online by Cambridge University Press: 02 August 2007
The need to conserve biodiversity is recognized as an international problem. The Convention on Biological Diversity (CBD) (http://www.biodiv.org) and the Ramsar Convention on Wetlands (http://ramsar.org) are two examples of international treaties that recognize this issue. The CBD contains explicit impact assessment provisions. Because the US has failed to ratify the CBD, joining Andorra, the Holy See, Iraq, Somalia, and Timor-Leste as the only nations that have not done so, the federal government has not had a consistent approach in its decision making. Nevertheless, the National Environmental Policy Act (NEPA) does provide a mandate and a framework for federal agencies to consider biodiversity impacts, along with other reasonably foreseeable environmental effects of their actions. NEPA Section 101 discusses the need to preserve important historic cultural and natural aspects of our natural heritage. NEPA Section 102 requires a systematic interdisciplinary approach to environmental impact review and that agencies utilize ecological information in planning and development. The Council on Environmental Quality (CEQ) regulations (40 CFR 1508) further explain that effects that must be analyzed in a NEPA review include “ecological, such as the effects on natural resources and on the components, structures, and functioning of affected ecosystems … whether direct, indirect or cumulative.” The International Association for Impact Assessment (2005) has recognized impact assessment as an important decision-support tool to help plan and implement development with biodiversity in mind.