Hi! I work for the Division on Earth & Life Studies of the National Research Council (United States).
The National Research Council is the operating arm of the National Academy of Sciences, and convenes committees that produce consensus reports on some of the most pressing challenges facing the nation and the world. The National Research Council consists of five Divisions: Behavioral and Social Sciences and Education, Earth and Life Studies, Engineering and Physical Sciences, Policy and Global Affairs, and Transportation Research Board.
The National Academy of Sciences is an honorific society of distinguished scholars engaged in scientific and engineering research, dedicated to the furtherance of science and technology and to their use for the general welfare. The National Academy of Sciences publishes a scholarly journal, Proceedings of the National Academy of Sciences, organizes symposia, and convenes meetings on issues of national importance and urgency. However, the The National Academy of Sciences operates very few committees directly; most of its study projects are undertaken by the National Research Council.
The National Academy of Sciences, National Academy of Engineering, Institute of Medicine, and National Research Council are private, nonprofit institutions that are known collectively as the National Academies.