In 2007, the world crossed a threshold:  for the first time in human history, the majority of people lived in urban areas. Today, Africa and Asia are the only remaining continents where the rural population outnumbers urban, but they are urbanizing at unprecedented rates. This rapid growth is a double-edged sword. While urbanization spurs economic opportunity and often increases access to infrastructure, it is also widening disparities in health and development, according to a new data sheet by the Population Reference Bureau.

In my tiny, half-an-island country of Timor-Leste, cemeteries smell of jasmine and come to life on All Saints’ Day. Families have picnics and kids roam wild over the tombstones. Here, stepping on somebody else’s family tombstones is not seen as an offense but as the norm; after all, since there isn’t enough land to hold so many graves, not stepping on one is impossible unless you have mastered levitation.

Fifteen years ago last month, I was brought to America through the U.S. Refugee Resettlement Program after having lived in refugee camps in Ethiopia and Kenya for more than a decade. As I reflect on my experience, it is my hope that it will inspire others and help inform dialogue on forced migration so that refugees are perceived not just as victims, but models of resilience.

“With current neglect of family planning, the UN’s recent projection of a 2100 world population of up to 12.3 billion is a possibility,” says a report from the University of California, San Francisco’s Bixby Center for Global Reproductive Health. Increased voluntary family planning efforts are needed, the authors contend, to meet existing demand for contraceptives, stabilize the threat of global food insecurity, and reduce carbon emissions that contribute to climate change.

Although treating wastewater generally ranks alongside police and fire safety, schools, and transit as the top priorities of any sensible city hall, new ideas about cleaning up sewage almost never attract headlines or TV airtime. In its 90-year history, for instance, The New Yorker, the most urbane and expansive magazine in the country, has never published a feature article on sewage treatment.

When Valerie Hudson evaluates the strength of a nation, whether food security, wealth, peacefulness, or quality of governance, she finds one important thread that underlies it all. “One of the most important factors in the determination of these things is in fact the situation, and security, and status of women,” said Hudson at the Wilson Center on June 24. [Video Below]

In March 1999, not long after he was sworn in as the 47^th mayor of Oakland, Jerry Brown called Lesley Estes, the supervisor of the city’s watershed protection program. Brown, who is now California’s governor, wanted the city staffer he called “Creek Lady” to describe the most formidable ideas she had to conserve natural areas, make parks more beautiful, and clean up the city’s waters.