Climate change and youthful demographics can combine to create security risks in already fragile contexts, according to a new report commissioned by UNICEF UK and co-authored by the London-based research organizations International Alert and the International Institute for Strategic Studies.

Last week, the Islamic State’s ignorance of the role of demography in their local success may have led them to overplay their hand. Seeking to dissuade Jordanians from following their government in actively supporting the alliance arrayed against them, they executed a captured Jordanian pilot in horrendous fashion, burning him alive. Yet Jordan is not like Syria or Iraq, where violence against westerners or Shi’a or other minorities has helped split people from their allegiance to the government. Instead, this act of violence seems to have unified Jordan’s Sunnis against the Islamic State for their actions against a fellow Sunni Muslim. Jordan has expanded its assault, striking dozens of targets in Iraq for the first time.

From the mountains and foothills of the Himalayas to the Terai plains, climate change is rapidly changing life in Nepal. Many communities however, are not strangers to environmental stress; for decades, rapid population growth alongside agriculture and fuelwood collection have degraded land and diminished forests. [Video Below]

Population projections undergird many important policy decisions, from the U.S. government’s Feed the Future program to the Sustainable Development Goals. But they’re not as straightforward as they appear. Demographers often base their estimates on complicated assumptions that aren’t obvious to the end user.

In his 2007 best-seller, The World Without Us, Alan Weisman explored what would happen to the planet if the human race suddenly vanished – the gradual deterioration of the built environment, the geologic fossilization of our everyday stuff, and the ecological processes that would rebound and thrive without continual and growing human pressure. [Video Below]