Since the early 1990s, the rising price of crude oil and other key natural resources – and the resulting drive by governments and private companies to extract those resources – has led to sharp conflicts in Latin America. At the core of these disputes is the clash between national economic interest and the rights of indigenous people inhabiting the land where most natural resources are located.

As presidents, prime ministers, and other policymakers from across the continent gather in Washington, DC, this week for the first-ever U.S.-Africa Leaders Summit, what are the issues to watch?

Asia is going through an unprecedented wave of urbanization. Secondary and tertiary cities are seeing the most rapid changes in land-use and ownership, social structures, and values as peri-urban and agricultural land become part of metropolitan cityscapes. All the while, climate change is making many of these fast-growing cities more vulnerable to disasters.

“You can look into the future a couple decades and get a very good idea about where countries are going,” said Richard Cincotta during a presentation at the National Defense University last summer – at least when it comes to demography.

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]

Rapid growth and environmental change are creating new challenges for urban areas around the world. By 2050, as many as 7 out of 10 people on Earth will live in cities, with the vast majority of growth occurring in today’s developing countries. [Video Below]