U.S. Geological Survey
April 5, 2002
|Through:||Bennett, W. Riley /s/
Assistant Secretary, Water and Science
|From:||Charles G. Groat /s/
Director, U.S. Geological Survey
|Subject:||Supplemental Information Regarding Our Report Arctic Wildlife Coastal Plain Terrestrial Wildlife Summaries|
In my March 29, 2002, memorandum transmitting the referenced report, I referred to providing additional analyses related to the Porcupine Caribou Herd that would be relevant to scenarios that have emerged since the body of work described in the report was completed. These relate to our best understanding, based on the most recent U.S. Geological Survey assessment of undiscovered petroleum resources in the 1002 area, about where development would most likely be concentrated. While the additional analyses make use of the same peer-reviewed modeling procedure used in the original report, they do not change anything in the work described there. In addition to providing additional analyses, we are portraying the full range of scenarios represented in Figure 3.28. This will give you a more complete picture of the elements of each scenario analyzed in that part of the report and their relationship to the additional ones provided here.
Should the Congress approve petroleum development in the 1002 area of the Arctic National Wildlife Refuge and given the commitment in the proposed legislation to minimizing the footprint and thereby the impacts on natural systems, there will be discussions about how to accomplish this and how to mitigate those impacts that could occur. The model used in the work described in the referenced report and complementary capabilities of our scientists are available to help you and other decisionmakers in the Department of the Interior assess proposed development plans and suggest ways to minimize and mitigate impacts. We stand ready to provide technical assistance to you and others involved in this important work.