Just months after popular uprisings toppled Tunisia and Egypt’s authoritarian regimes, a trio of complex-system researchers published a brief article linking these demonstrations with high levels of the UN Food and Agriculture Organization’s international Food Price Index. Marco Lagi, Karla Bertrand, and Yaneer Bar-Yam’s model, which predicts outbreaks of deadly social conflict when the index tops 210, has since become a popular explanation wielded by many for bouts of popular unrest, including the Arab Spring and overthrow of Ukraine’s government. But were food prices really an underlying “hidden” cause for the start of a wave of instability that is still being felt today?

For years, the Chepang people have lived off the land in Nepal’s forested central foothills. Communities cleared trees to start small subsistence farms, harvested the surrounding area for firewood, and eventually moved on after the wood, soil, and water were depleted.

USAID funding is “far outstripped” by private investment and business relationships in “nearly every country” in which it works – and that’s a good thing, according to USAID Administrator Rajiv Shah. [Video Below]

What are the environmental implications of changing household sizes? A recent article by Mason Bradbury, M. Nils Peterson, and Jianguo Liu, published in Population and Environment, analyzes data from 213 countries over 400 years and finds the average number of occupants per home tends to decline as population grows. This dynamic, they write, indicates that accommodating housing could prove to be one of “the greatest environmental challenges of the twenty-first century.” As countries develop and urbanize, “according to convergence theory, household size decreases (often from greater than five to less than three).” Other cultural shifts, like increasing divorce rates, urban sprawl driven by rising affluence, decreasing numbers of multigenerational households, and larger houses (in the United States, homes more than doubled in size between 1950 and 2002, according to the article) compound the issue. As population growth continues in parts of the world, these trends pose critical questions for conservation and environmental sustainability, since “households are the end consumers of most natural resources and ecosystem services.”

The pork industry in China accounts for 65 percent of domestic meat consumption, but also produces 1.29 billion metric tons of waste every year. China’s growing appetite for meat has put tremendous pressure on the livestock sector, which now produces three times more waste than industrial sources, and created a series of environmental and food safety issues.

How has China managed to feed nearly one-quarter of the world’s population with only seven percent of the world’s arable land?

In 1995, Lester Brown forecasted doom and gloom for China’s ability to produce enough grain for its people, in his popular book, Who Will Feed China? He hypothesized that China would be forced to buy grain from abroad, thereby seriously disrupting world food markets.