“When I embarked on this series, I approached it as an environmental reporter: What does a growing number of us and growing consumption mean for our planet?” said Los Angeles Times reporter Ken Weiss at the Wilson Center on October 9. Weiss, along with photographer Rick Loomis, recently completed a five-part series and multimedia presentation on global population that was the culmination of a year of research and travel through more than six countries. [Video Below]

As our ferry slowly made its way across the Pangani River along the northern coast of Tanzania, I sat next to a woman whose child held her hand tightly. The boy and I exchanged smiles, but we mainly admired the view. The late morning sun was behind us as the royal blue river met the cloudless sky.

The original version of this article appeared in The Nature Conservancy’s October issue of their Science Chronicles newsletter.

It seems like everywhere you turn recently, you hear how the planet’s population is headed to 10 billion. And obvious questions follow: How can we balance far more people with the natural resources needed for their survival? How will we get more food? How will we get more energy?

Access to safe water is often taken for granted in developed countries. But last week at the 22^nd annual conference of the Society of Environmental Journalists, panelists argued that the impact of dirty water on women’s health is an important but neglected story, not only in developing countries like Nigeria, but also in the United States.

While Pakistan’s demographic challenges are perhaps well known – two-thirds of the population of 180 million is under 30 years old – increasing security concerns have prompted discussions about exactly how much the country’s youthfulness is affecting its prospects for peace. On October 10, the U.S. Institute of Peace and George Mason University’s School of Public Policy hosted a day-long conference on “Youth Bulge, Public Policy, and Peace in Pakistan” to tackle this question.

Quantifying the role population plays in food security is “an incredibly powerful piece of information,” said Kathleen Mogelgaard in an interview with ECSP. Malawi is a case in point.

Mogelgaard saw the connections between food, population, and climate change firsthand on a recent trip to the southeast African country, whose population of 15 million is largely dependent on subsistence, rain-fed agriculture. “One in five children in Malawi is currently undernourished,” Mogelgaard said, and climate change paints a bleak picture for the future.

Obstetric fistula is “not just a medical issue, but a human issue,” said Dr. Luc de Bernis, senior maternal health advisor at UNFPA, during a September 27 panel discussion at the Wilson Center. Obstetric fistula, a hole in the birth canal that can develop between the vagina and the bladder and/or rectum during prolonged labor without proper medical intervention, is preventable and treatable but continues to affect more than two million women worldwide, mostly in developing countries where women lack access to cesarean services. Women stricken with it face severe pain and suffering, social stigmatization, and usually give birth to a stillborn child.

Two weeks ago, 1,600 venture capitalists, philanthropists, and entrepreneurs gathered at the 2012 Social Capital Markets Conference (SOCAP) to discuss the question at the heart of impact investing: How can investments do well while also doing good? Consistent with the in-depth nature of SOCAP, panels examined every aspect of capital flows, including how to structure a business, how to move an idea from a prototype to scale, and where to invest for maximum impact. The resulting conversations gave rise to multiple technical suggestions – and one paradigm shift. In order to do well and do good, multiple conference participants argued, investors must incorporate a gender lens into their portfolio.