AS-USA is the only organization is the United States which is chaired by an M.D./Ph.D. environmentalist with a minority immigrant Executive Director, working to inform diverse audiences about the consequences of swelling population growth and the benefits of a stable population for the sake of current and future generations.

AS-USA Executive Director


Yeh Ling-Ling is a naturalized citizen born in Vietnam of Chinese parents. She had approximately 20 years of education abroad (Cambodia, Taiwan University and the University of Paris-Sorbonne). Ms. Yeh immigrated to the United States in 1980. She was featured as a leader advocating sustainable immigration on page one of the Washington Post on 5/11/2006.

After working 10 years preparing immigration applications for law firms, Ms. Yeh realized that many problems that concern native-born citizens and legal immigrants - including water and energy shortages, high unemployment, failing education, skyrocketing healthcare costs, budget deficits, sprawl, gridlock, homeland security, overburdened infrastructure and rising ethnic tensions - cannot be solved effectively without also addressing rapid U.S. population growth.

More than 200 of her articles have appeared in many publications across the U.S., such as Los Angeles Times, Harvard Law School's Record, Christian Science Monitor, Baltimore Sun, Chicago Tribune, Houston Chronicle, Newark Star Ledger, Philadelphia Inquirer, Atlanta Journal- Constitution, San Francisco Chronicle, Rocky Mountain News, Providence Journal, Omaha World-Herald, Salt Lake Tribune, Seattle Times, Union-Leader, Sun Sentinel, Denver Post, New York Newsday, Helena (Montana) Independent Review, St. Paul Pioneer-Press, Honolulu Star- Bulletin, Lexington Herald-Leader, San Diego Union-Tribune, Idaho Press-Tribune, Des Moines Register, Arkansas Democrat-Gazette, Birmingham News, USA Today magazine and Yahoo!Voices.

Two opinion pieces by Ms. Yeh have been reprinted in a college text book, California Dreams and Realities: Reading for Critical Thinkers and Writers. Excerpts of her article, "Legal Immigration Must Be Curbed, Too" from USA Today magazine were reprinted in the national Sixth Edition of Prentice Hall Literature, "The American Experience." Another article of hers, "Inside Asian America," which originally appeared in A. Magazine, was reprinted in American Government.

Yeh Ling-Ling has been interviewed by numerous media, such as CNN, Associated Press, LA Times, San Francisco Chronicle, Seattle Times, Philadelphia Inquirer, Atlanta Journal-Constitution, Austin American-Statesman, Manchester Union-Leader, and Deseret News. She has appeared on more than 300 talk shows nationwide. AsianWeek published a positive cover story about her work in the February 17, 2000, issue. Jonathan Alter of Newsweek wrote a column about her on MSNBC on 8/17/2001 entitled, "Immigration: Worth a Second Look." Ms. Yeh was featured in an article in the November/December 2004 issue of the Sierra Magazine entitled, "A Tale of Two Immigrants."

Board of Directors

RONNIE HAWKINS, M.D., Ph.D. (Chair and President)
Dr. Ronnie Hawkins was awarded an M.D. from the University of Florida in 1974, completed a residency in anatomic pathology at Yale-New Haven Hospital in 1976, and received a Ph.D. in philosophy from the University of Florida in 1994, since which time she taught in the Department of Philosophy at the University of Central Florida in Orlando until her retirement in 2011. She is the author of a number of articles on environmental philosophy and bioethics, including several with a focus on human population growth. Her most recent is "Perceiving Overpopulation," in Life on the Brink, edited by Philip Cafaro and Eileen Crist, 2012.

Ms. Harwell is a life-long activist for the health and rights of women, the Founder and Honorary Chair of ACLU of Pennsylvania, and the Co-founder of New England Coalition for a Sustainable Population.

Environmental leader Huey D. Johnson was California Secretary of Resources in the Brown Administration (1978 -1982). He received the United Nations Sasakawa Environment Prize in 2001. In addition to founding the Trust for Public Land and the Grand Canyon Trust, Mr. Johnson founded Resources Renewal Institute and is serving as its President.

Dr. David Pimentel is a professor of ecology and agricultural sciences at Cornell University, Ithaca, New York. His Ph.D. is from Cornell University and had postdoctoral fellowship at Oxford University. He was awarded a distinguished honorary degree from the University of Massachusetts. Professor Pimentel's research spans the fields of energy, population ecology, biological pest control, sustainable agriculture, land and water conservation, and environmental policy. He has published 710 scientific papers and 40 books and has served on many national and governmental committees including the National Academy of Sciences; President's Science Advisory Council; U.S. Department of Agriculture; U.S. Department of Energy; U.S. Department of Health, Education and Welfare; Office of Technology Assessment of the U.S. Congress; and the U.S. State Department.

Board of Advisors

*** Note: Affiliations are for identification purposes only ***

Harvard University

Retired Labor Union Columnist, Los Angeles Times

Founder, Association of Community Employment Programs for the Homeless

Professor Emeritus, University of Nevada, Reno


Economist and Former Carter Presidential Appointee

Retired Engineering Manager

Professor of Graduate School
Department of Molecular and Cell Biology
Former Head of Biochemistry and Molecular Biology Division
University of California, Berkeley


Former Chairman of Mathematics Department
Arizona State University

Founder and President
Law Enforcement Officers Advocates Council

Past President, Audubon Council of Texas