The idea of climate change as a “threat multiplier” has been gaining steam since it was first proposed roughly 15 years ago. This framing acknowledges that climate can interact with existing political, social, and demographic conditions to heighten communities’ security risks—which in turn suggests that problem-solving in the face of these risks must be interdisciplinary.

The United Nations Population Fund (UNFPA) 2023 State of the World Population (SWOP) Report offers a chance to reflect on what’s at stake in debates over global population. “The question is not whether the human population is too large or too small. The question is whether everyone can exercise their fundamental human right to choose the number and spacing of their children,” said Sarah Craven, Chief of the Washington Office of UNFPA at the virtual D.C. launch of the report at the Wilson Center on April 26, 2023.  

When a military-led or military-influenced coup d’état occur in a foreign country, does evidence from demographic research merit consideration in the U.S. foreign policy response? It’s a question that U.S. policymakers should be asking as deteriorating political conditions in West Africa come increasingly into confluence with the limited tools available either to deter or respond to illegal and extra-legal forms of political succession.

Climate change has become part of our daily lexicon. Rarely does a week pass when a hurricane, drought, wildfire, or some other climate disruption is not front page news. These headlines often offer dire predictions of mass migration as well—a bracing vision of hordes of people moving to greener pastures, often found further inland and further north, where some political leaders leverage the narrative to push their own agendas.

The Population Institute’s recent report, Invisible Threads: Addressing the root causes of migration from Guatemala by investing in women and girls, has brought attention to the numerous factors that drive migration in Guatemala. One of the key factors addressed in the report is climate change, which is linked closely to issues concerning land in that country. To this day, multiple generations of indigenous women endure the effects of land displacement and inequities in access to land—as well as related social and economic pressures. In concert with other political, social, and economic problems, this particular challenge has resulted in large outflows of migrants from the region.

Just in the last minute, 169 more people were born on planet Earth, and everyday more than a quarter of a million are added to that total. John Milewski, Moderator of Wilson Center NOW, laid out these astonishing facts at the beginning of a Wilson Center NOW conversation on the implications of global population growth with Wilson Center Fellow Jennifer Sciubba on November 14— the eve of the historic day when the number of people on the planet officially surpassed 8 billion. 

As the world’s attention has turned in November 2022 to the UN COP 27 climate change conference, another important global milestone is also drawing attention. Today, November 15, 2022, the global population is predicted to reach 8 billion. By 2050, it will be 9.7 billion.