“With current neglect of family planning, the UN’s recent projection of a 2100 world population of up to 12.3 billion is a possibility,” says a report from the University of California, San Francisco’s Bixby Center for Global Reproductive Health. Increased voluntary family planning efforts are needed, the authors contend, to meet existing demand for contraceptives, stabilize the threat of global food insecurity, and reduce carbon emissions that contribute to climate change.

Since President Lyndon B. Johnson created the USAID population program in 1965, it has evolved in tandem with the global discourse on population and demography. “The agency’s family planning program is as relevant today as it ever was, and is necessary,” said Jennifer Adams, deputy assistant administrator of the U.S. Agency of International Development’s Bureau for Global Health. The bureau houses the Office of Population and Reproductive Health, which implements U.S. development and relief efforts to expand access to modern contraceptives, fight HIV/AIDS, reduce unsafe abortions, and protect the health of women and children. [Video Below]

Karachi, the world’s second largest city by population, is emerging from the grips of a deadly heatwave. A persistent low pressure system camped over the Arabian Sea stifled ocean breezes and brought temperatures in excess of 113°F (45°C) to the city of 23 million people in June. The searing heat disrupted electricity and water service, making life nearly unbearable. All told, officials estimate the heatwave killed at least 1,200 Pakistanis, more than twice as many as have died in terrorist attacks this year.

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).

Pope Francis sparked worldwide discussion and jubilation among many green advocates after releasing Laudato Si, the first Papal encyclical to focus directly on the environment. The pontiff touched on everything from pollution and sustainable development, to anthropogenic climate change and water security in his 180-page missive.

A new article from the Wilson Center’s own Roger-Mark De Souza explores how population trends can bolster community resilience in the face of climate change and other security threats. De Souza argues that demographic trends such as age structure help determine how well a population is able to respond to and bounce back from shocks, especially environmental ones like drought and famine.

In their first annual report, the ResilientAfrica Network (RAN), a partnership of 15 African universities, Tulane University, Stanford University, and the Center for Strategic and International Studies, outlines efforts to explore and define multiple “pathways of vulnerability” in sub-Saharan Africa. The report acknowledges that these pathways can be very different from place to place, but by working with African communities more closely, they hope to find new ways to break cycles of chronic crisis. One of the interventions piloted by Stanford was “deliberative polling,” which is  based on the premise that communities are more likely to respond to development interventions if they understand the logic behind them and are involved in the process.

Researchers have been warning about future water scarcity for decades, but new data reveals a majority of the world’s largest aquifers are already running out of water.