“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.

Super Typhoon Haiyan left the central Philippines in ruins, with a staggering death toll that could climb well above 10,000. The U.S. military is leading the international response to the devastation, along with international aid agencies. The Pentagon has dispatched an aircraft carrier and five other Navy ships, plus a separate group of at least 90 marines and specially trained humanitarian relief teams to the area.

The original version of this article appeared on the Inter Press Service.

What does gorilla conservation have in common with the provision of contraceptives to women? How does rural-urban migration contribute to global warming? What does city planning in Kenya have to do with coastal erosion in the Philippines?

More than 84 percent of the 2010 world population – 5.8 billion people – consider themselves religiously affiliated, according to a recent study. Religious leaders can therefore have significant influence across a broad range of social, economic, and political issues. Perhaps nowhere is that influence felt more strongly than in debates about reproductive health and rights, and perhaps nowhere are the consequences so large than in poor and marginalized communities.

There’s a popular saying in Afghanistan reflecting the value of water: “Let Kabul be without gold, but not without snow.”

Living in a refugee camp across the border in Pakistan during the Soviet occupation, my father, who worked as a doctor in Samangan, Bamyan, Kunar, and Balkh provinces, used to tell me about the importance of our country’s natural wealth. He was optimistic that it was Afghanistan’s land, water, forests, and minerals that would help the country re-emerge as a strong nation. However, he also knew that the mismanagement of our natural resources is partly to blame for the instability, insecurity, and vulnerability that have gripped our country for so many years. This is the paradox of the natural resource wealth in Afghanistan.

Population aging and decline are frequently described as a threat to countries’ economic development and social stability. Evocative language, such as “demographic winter” and “graying of the great powers,” portrays the serious consequences that many observers envision as fertility and growth rates decline and the elderly comprise a greater percentage of the population. These concerns reach around the globe, including in Africa, which has the lowest percentage of elderly among the world’s major regions.

Ecuador, the OPEC member with the smallest amount of proven oil reserves, has gained outsized attention in the debate over the future of oil extraction in recent days and may well play a decisive role in the outcome of the global tension between economic development and environmental conservation.

Since 2008 – a year in which rapid increases in the global prices for major grains helped to trigger outbreaks of civil unrest in more than 40 countries – scholars and policymakers have paid increased attention to the potential influence of global food prices on social and political instability. Since that time, spiking prices have periodically sparked public protests and governments have struggled to respond.