World Population Day began in 1987 after public imagination was sparked by the idea that there could be 5 billion people on Earth. Today, we’re well past 7 billion and according to the latest UN projections, headed north of 9 billion by mid-century.

“Population is critical to thinking about sustainability and human wellbeing, and how we live and subsist on the planet,” says ECSP’s Roger-Mark De Souza on this World Population Day.

Since 2005, the Reducing Emissions from Deforestation and Forest Degradation program (REDD+) has functioned as a mechanism to financially incentivize the preservation of forestlands in order to reduce greenhouse gas emissions. But beyond its original use, some organizations have also started exploring ways it can help with other development initiatives, like women’s empowerment. [Video Below]

According to NASA and a team of scientists from the University of California, significant portions of the West Antarctic ice sheet have begun an unstoppable slide towards oblivion, slowly melting in warmer-than-usual ocean currents that have been eating away at their bases. [Video Below]

In an era defined by climate change and other disruptions, “resilience” – the capacity to survive and thrive in times of crisis and change – is increasingly essential.

The Intergovernmental Panel on Climate Change’s fifth assessment, which has been rolling out in stages since last September, confirms a crucial divide in current climate thinking: efforts to adapt and mitigate to climate change are often considered separately from the vulnerability of people.

You might wonder what the Cold War has to do with climate change, but as I listened last month to historian James Graham Wilson talk about the “triumph of improvisation” that ended the nearly 50-year stare-down between the United States and the U.S.S.R., I was struck by the parallels. The idea of individual leaders escaping the momentum of conventional approaches and adapting on the fly to solve a major global issue deeply resonated with me. It’s exactly what international climate change negotiations desperately need.

Outside of donor and humanitarian aid, South Sudan’s economy is almost entirely dependent on the oil sector – and that sector is in crisis.