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.”

Earlier this week, the Department of Defense released its first Quadrennial Defense Review since fiscal cliffs, shutdowns, and spending cuts hit the federal government. Not surprisingly, “austerity” shows up in almost every chapter of the report. What shows up even more? Climate change. For the second QDR in a row, the Pentagon has called out climate change as a “significant challenge for the United States and the world at large.”

What do melting Himalayan glaciers have to do with food security in Cambodia? Not much, thought an aid practitioner trying to boost food security along the lower reaches of the Mekong River – until she heard a colleague working on the Tibetan Plateau describe the downstream implications of climate change in the Himalayas. Everything she was working on, she suddenly realized, could be literally washed away.

Family planning, which saw a relative decline in financial support from the international development community over the last two decades, is now back in vogue, thanks in large part to the Bill and Melinda Gates Foundation. After spearheading the London Summit on Family Planning in 2012 alongside many governments, the foundation’s recently released 2014 Annual Letter sets out to dispel three “myths” about development, one of which is “saving lives leads to overpopulation.”

In 2008 and 2010, the price of many basic food stuffs soared, sparking a series of riots and food crises around the world. People in the poorest countries – those living with the smallest margins – were most affected, while the economies of developed nations were able to absorb the price changes. According to Notre Dame’s Global Adaptation Index, how climate change will impact different countries depends not only on their vulnerability to physical changes, but also their ability to absorb these impacts. [Video Below]