As policymakers respond to the threat of climate and environmental change, the concept of resilience has found itself at the center of discussion. Few scientists and policymakers, however, can come to a consensus on how to define, evaluate, and build resilience.

Sudan’s pastoralists gained infamy during the conflict in Darfur last decade, when outsiders described the violence as a result of competition between climate-stressed, semi-nomadic herders and sedentary farmers. But Sudan’s pastoralists may not be as fragile as previously thought and could even hold the key to survival for similar groups in Africa, said a panel of experts at the Wilson Center on November 13. [Video Below]

“Leave enough for everyone.” That’s what my mother used to tell us at dinner. However, the holiday season reminds me that human nature is far from innately moderate in consumption. With Black Friday as a kickoff, consumers will spend more than $600 billion by Christmas in the United States alone. As I witness droves of shoppers running through malls and stores, I wonder if their desire is driven by some insatiable appetite for their favorite products or something more fundamental about human nature.

The effects of climate change are often conveyed through the lens of changing physical landscapes. Shifting weather patterns, the intensification of drought, flooding, and coastal erosion are all primary areas of climate research. But do researchers know enough about changes in the size, distribution, and composition of human populations as they relate to climate vulnerability? [Video Below]

When it comes to climate change vulnerability, it sometimes seems as if all eyes are on Bangladesh. As part of my research for a recent article exploring the rise of aquaculture in the country, I interviewed Saleemul Huq, senior fellow at the International Institute for Environment and Development in London, former executive director of the Bangladesh Center for Advanced Studies, and lead author of two chapters on adaptation and sustainable development in the IPCC’s third and fourth assessment reports. A number of his quotes made it into the final story but I wanted to provide the full transcript here as well, as his thoughts on the country’s climate-related risks, food security, and population dynamics are worth a read.

Pakistan, long a nation defined by its large rural populations and dominant agricultural industries, is undergoing a dramatic urban shift.

According to UN Population Division estimates, the country is urbanizing at a three percent annual rate – the fastest pace in South Asia. In barely 10 years, nearly 50 percent of Pakistan’s 180 million people will live in cities (a third do today). Pakistani government projections using density-based rather than administrative definitions of urbanization suggest that Pakistan’s urban population has already reached 50 percent.