Celebrity philanthropists such as Bono, Angelina Jolie, and George Clooney have shined their star power on global issues like AIDS, genocide, and refugees. In last month’s Vogue, supermodel Christy Turlington turned the light on one of the most overlooked problems: maternal mortality.

In an Economist.com debate on population growth between John Seager of Population Connection and Michael Lind of the New America Foundation, Seager argues that rapid population growth is “the source of many of the world’s—especially the poor world’s—woes,” as it accelerates environmental degradation and “undermines both security and development.” On the other hand, Lind counters that “countries are not poor because they have too many people,” and asserts that “technology and increased efficiency have refuted what looks like imminent resource exhaustion.”

“The world is awakening to a powerful truth: Women and girls aren’t the problem; they’re the solution,” write Nicholas Kristof and Sheryl WuDunn in the lead article of this Sunday’s The New York Times Magazine.

In this special issue devoted to “Saving the World’s Women,” five articles document global failures and personal horrors, but also offer forward-looking solutions from the individual to the institutional. As the subtitle says—“changing the lives of women and girls in the developing world can change everything”— this vital effort can help us not only improve the lives of women, but meet larger goals including international security, global health, and economic development.

Christian Aid’s “Growing Pains: The Possibilities and Problems of Biofuels” finds that “huge subsidies and targets in developed countries for boosting the production of fuels from plants such as maize and palm oil are exacerbating environmental and social problems in poor nations.”

The famous mathematician John von Neumann called climate engineering a “thoroughly ‘abnormal’ industry,” arguing that large-scale interventions, including solar radiation management, were not necessarily rational undertakings and could have “rather fantastic effects” on a scale difficult to imagine. Tinkering with the Earth’s heat budget or the atmosphere’s general circulation, he said, “will merge each nation’s affairs with those of every other, more thoroughly than the threat of a nuclear or any other war may already have done”—and possibly leading to “forms of climatic warfare as yet unimagined.”

I have a few responses to Will Rogers’ thoughtful critique of my report, “Military vs. Climate Security: Mapping the Shift from the Bush Years to the Obama Era.”

Rogers says that “the report could be read as inferring that the Department of Defense (DoD) has an unnecessarily oversized budget”: that’s true. I think a single country that spends 43 percent of the world’s total military budget—more than the next 14 countries put together—and whose spending has nearly doubled since FY 2000 to the highest level in real terms since World War II, could find some ways to provide for the common defense with less money.

“Knowing is not enough; you must act and let your government know that family planning is a right and saves lives,” said Maurice Middleberg of the Global Health Council at a recent event in Chapel Hill.

The other panelists at “How Can Family Planning Efforts Help Us Achieve the Millennium Development Goals?” (Dr. Martha Carlough of UNC, Dr. Ward Cates of Family Health International, and Pape Gaye of IntraHealth International) all provided compelling statistics demonstrating the effectiveness of family planning as an intervention that addresses the Millennium Development Goals (MDGs).

MDGs 4, 5, and 6 – reducing child mortality; improving maternal health; and combating HIV/AIDS, malaria, and other diseases, respectively – all have obvious connections to health and woman’s reproductive health. An unmet need for family planning, which is measured as the percentage of women of reproductive age who desire to space or limit their births but are not using contraception, can undermine the achievement of these goals.

For example, very early motherhood not only increases the risk of dying in childbirth, it also jeopardizes the well-being of surviving mothers—and their children, too. A child born to an adolescent mother has a greater risk of dying in infancy or childhood.

“Contraception is the best-kept secret in HIV prevention,” said Dr. Cates, who cited research that found that “current contraceptive use in sub-Saharan Africa prevents an estimated 577,200 unplanned births to HIV-infected mothers” and thus prevents the birth of an estimated 173,000 HIV-infected infants each year.

Family planning can help meet the other MDGs, including ending poverty and hunger (Goal 1); providing universal primary education (Goal 2); and promoting gender equity (Goal 3). Young mothers frequently miss out on education and socio-economic opportunities. Being able to make their own decisions about family planning and reproductive health can empower women and improve gender equity. When women are given equal opportunities for education, health, and employment, they are more likely to invest in the education and care of their children. This helps them break the cycle of poverty, hunger, and disease.

Although the MDGS don’t include any formal targets for sexual and reproductive health, the UN Millennium Project has stated that the MDGs cannot be achieved in low-income countries without access to sexual and reproductive health services, including family planning. The panelists agreed that family planning is a cost-effective intervention that provides broader positive benefits for development.

But the real strength of their presentations lay in the personal stories behind the statistics. Middleberg closed the discussion with a story about a woman in Latin America who told him that she loves her husband but was afraid of him every time he touched her. Now, after having undergone sterilization, she no longer worries and can love her husband with no fear of becoming pregnant.

A mother of six interviewed in a 2009 news article about the Philippines’ new family planning bill said, “How can one keep on having children? We don’t earn enough to feed them, much less send them to school.” New York Times columnist Nicholas Kristof interviews a Haitian woman with 10 children in a dramatic video interview, “Saving Lives with Family Planning.”

Underlying all of these facts and stories is the belief that one’s health and well-being, including access to family planning, is a right. But as Middleberg said, believing is not enough.

EngenderHealth, an international reproductive health organization working to improve the quality of health care in the world’s poorest communities, is asking Americans to create a video explaining why we should care about international family planning. Contribute your thoughts on YouTube’s Video Volunteers project.

Lisa Basalla, MPH, is a research associate with the Carolina Population Center. She graduated from Case Western Reserve University with a MPH focusing on reproductive and adolescent health. She has worked with Johns Hopkins University’s Center for Communications Programs on its reproductive health knowledge management project as well as a HIV-prevention behavior change communication project in Malawi.

Photo: A billboard promoting family planning in Phnom Pehn, Cambodia. Courtesy flickr user olerousing.

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The Population Reference Bureau’s 2009 World Population Data Sheet shows that global population numbers will reach 7 billion in 2011. Among its key findings, PRB notes that “population growth is one root cause of increases in global greenhouse gas emissions. But the complexity of the mechanisms through which demographic factors affect emissions is not fully taken into consideration in many analyses that influence governments’ climate change mitigation efforts.”