Since his election, President Obama has received wide-ranging advice from major environmental nonprofits and experts on dealing with neglected environmental and related energy issues. But their advice generally ignores the most critical environmental threat – U.S. population size and growth. NPG’s advice to Obama and the 111th Congress is to develop new permanent machinery to ensure domestic population gets due consideration in national policymaking and to raise the consciousness of Americans about the need to balance population size with resources. As a start, NPG recommends the creation of a network of senior population counselors in the White House and the cabinet-level agencies most concerned with environmental and resource issues. That network should be headed by a senior environmental scientist as Senior Advisor or Special Assistant to the President for Domestic Population and Sustainability. Congress should ensure continuing attention to domestic population by establishing standing committees on population, holding hearings, and appointing high-level population experts to Congressional research and fact-finding agencies.