; (B) climate economics; and (C) decision analysis. (3) Duties The Committee shall publish a report in which the Committee shall— (A) make a recommendation to the Working Group regarding whether a revision of the calculation method is necessary; (B) if the Committee determines that a revision is necessary, recommend scientific data and models to be used by the Working Group in the revision of the calculation method; (C) provide scientific advice to the Working Group on the revision; and (D) provide guidance to the U.S. Global Change Research Program with respect to the research necessary to advance the estimation of the costs of greenhouse gases. (b) Termination On the completion of the revision evaluation for which the Committee is established, the Committee shall terminate. (c) Authorization of appropriations There are authorized to be appropriated to the Secretary of Commerce such sums as are necessary to administer the Committee.