Between the Sahara to the north and savanna to the south lies the semi-arid Sahel, a region stretching from Senegal to Sudan that has experienced desperate poverty, climate change, malnutrition, and violence. While every context is different, the Sahelian countries share some common challenges, including a pattern of recurring crises and fluid borders. Boko Haram’s reign of terror in northern Nigeria and Mali’s coup have both had cross-border components. [Video Below]

In 1968, Stanford University biologist Paul Ehrlich predicted hundreds of millions would starve to death over the next decade, many of them Americans, and the world would generally decline into chaos in his book The Population Bomb.

Conventional wisdom has been that wealthier countries have better environmental protections than poorer countries. However, a new annual report launched this year, the Environmental Democracy Index, reveals that a strong economy does not necessarily ensure strong environmental rights.

Between sessions on the value of creating a physical expression of digital brands (Evernote socks) and Bitcoin, this year’s South by South West (SXSW) in Austin, Texas, featured newcomers from a different background: the U.S. National Intelligence Council.

East African countries like Kenya have made great strides in recent decades in increasing access to modern contraception, leading to marked declines in fertility rates. But disparities remain.

In a commencement speech at the U.S. Coast Guard Academy today, President Obama said “climate change constitutes a serious threat to global security, an immediate risk to our national security, and, make no mistake, it will impact how our military defends our country.”