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.

The people of northern Kenya currently face many daily hardships. Primarily pastoralists by livelihood, their cycle of life focuses on the basics – securing food and water for family and livestock, constructing shelter from the unforgiving sun, and finding sustenance when periodic droughts ravage the region. A 2011 drought affected millions of people, and tens of thousands of livestock died. Approximately 90 percent of the area’s population lives below the poverty line.

Today approximately 44 percent of the world’s 7.2 billion people are under 24 years old – and 26 percent are under 14. Of those 7.2 billion people, a staggering 82 percent live in less developed regions of the world – primarily sub-Saharan Africa and Asia. Currently, the global median age is 29.2 years old, a sharp contrast to Europe, for example, where the median age is 41.

In the wake of food riots in more than 30 countries in 2008 and the Arab Spring, in which food prices played an instigating role, the relationship between food security and instability demands a closer examination. “There is a lot of data on conflict, and a lot of data on food security, but it’s rarely brought together,” said Emmy Simmons, the author of the latest edition of ECSP Report. [Video Below]

China is one of the world’s 12 “mega-biodiversity” countries, but its incredible natural landscapes, from Sichuan’s sparkling, turquoise-colored lakes to Guilin’s dramatic karst topography, are bearing the cost of rapid economic development, writes British environmental photojournalist and videographer Sean Gallagher in a new multimedia e-book.

The original version of this article first appeared on The Globalist.

Haze may be the new weapon of mass destruction. Not in the narrow sense of an incoming ballistic missile, of course, but for millions in Southeast Asia, this summer’s sooty haze poses a threat more dire than a nuclear-tipped missile.

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.