Since the start of the Industrial Revolution some 250 years ago, the widespread use of chemical fertilizers and pesticides that began about a century and a half later and the atomic half-life of the past seven decades, humans have developed and doused land and dammed and diverted water. These practices have left a wound that continues to fester as the human population swells.

“We have a fairly unique moment in the history of the world,” said Steven Philip Kramer, a professor at National Defense University, at the Wilson Center on April 17. “There’s never been a time when people have voluntarily produced fewer children than is necessary for sustaining the population.” [Video Below]

In 2012, the government of Kenya passed a landmark policy to manage its rapid population growth. The new population policy aims to reduce the number of children a woman has over her lifetime from five in 2009 to 3 by 2030. The policy also includes targets for child mortality, maternal mortality, life expectancy, and other reproductive health measures.

In an era defined by climate change and other disruptions, “resilience” – the capacity to survive and thrive in times of crisis and change – is increasingly essential.

Evaluation is the lifeblood of any development effort – it’s how implementers know if they’re making a difference, determine what to do more or less of, and enables funders to evaluate cost-effectiveness. But it’s also an inexact science, no more so than when it comes to complex interventions that cut across sectors. [Video Below]