Iran is poised to reap a vast “demographic dividend” if the appropriate national and international policies are adopted, including a nuclear deal with the P5+1 (five permanent members of the UN Security Council, plus Germany).

On a warm January afternoon, Tesema Merga, a village elder in Endibir, Ethiopia, surveyed the latest improvements to the long dirt road just outside his house. Eventually this road will be paved, which will bring significant changes to the community.

The world is more connected than ever before, but also more complex. Big, transnational trends like climate change, urbanization, and migration are changing the calculus of geopolitics, while local-level inequalities persist. “[Change] seems to be spinning around us so fast,” said John Hempelmann, president of the Henry M. Jackson Foundation, which honors the legacy of the late senator from Washington State. How can today’s and tomorrow’s leaders adjust to global trends? [Video Below]

A pair of recently launched data sources offers visualizations to help people understand two hot-button issues in demography: the demographic dividend and changing fertility rates.

The world is about to hit a “turning point” in maternal and newborn health, said Laura Laski, chief of the sexual and reproductive health at UNFPA, at the Wilson Center on March 23. “In terms of strengthening the new health system for achieving the MDGS or any other goals, we have to focus on the human resources for health.” In particular, midwives.

Sub-Saharan Africa is often characterized as an outlier in terms of population dynamics and reproductive health. While women are having fewer children around the world, even prompting some places to begin worrying about aging populations, the demographic transition is proceeding more slowly in Africa. Fertility rates in North and Southern Africa have declined to around three children per woman, but the three other sub-regions of the continent – East, Central, and West Africa – retain much higher fertility, between five and six children per woman. Whether, and how quickly, fertility rates decline in these regions over the next few decades will in large part determine the peak of world population. These regions’ demographic trajectories also have important implications for health, governance, food security, economic development, land use, climate vulnerability, and even security.

If you were on a mission to improve the plight of humankind, no less, would you care about how many people are living, where they are and how old they are? You probably would, for it would obviously make it easier for you to estimate the challenge you face. However, the international community did not.