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]

Half the world’s pigs – 476 million – reside in China. Increasingly prosperous consumers are eating fewer grains and demanding a more protein-rich diet, ballooning the pork industry to 15 times its 1960s-era size. In the last 30 years, Chinese demand for meat has quadrupled and China is now the largest consumer of seafood in the world.

In a world faced with rising temperatures, increasingly severe droughts and floods, and a rapidly growing population, how can people adapt to this new way of life – and even thrive? Leading experts discussed this question in-depth during an Aspen Institute Global Health and Development Program event titled, “Building Resiliency: The Importance of Food Security and Population.” The panel took place as part of the Civil Society Policy Forum at the 2014 IMF/World Bank Spring Meetings in Washington, DC.

Outside of donor and humanitarian aid, South Sudan’s economy is almost entirely dependent on the oil sector – and that sector is in crisis.

What is the future of population and climate change research, and how can this research impact international policy? In a special issue of Population and Environment, environmental and social scientists look at these questions. “One of the most exciting developments in the climate change research community at present is the development of a new generation of climate scenarios,” write Adrian C. Hayes and Susana B. Adamo in the introduction. These can help facilitate more interdisciplinary research.