Stretching across northern Africa, the Sahel is a semi-arid region of more than a million square miles covering parts of nine countries. It is home to one of the world’s most punishing climates; vast expanses of uncharted and unmonitored desert; busy migration corridors that host human, drug, and arms trafficking; governments that are often ineffective and corrupt; and crushing poverty. It is not surprising then that the area has experienced a long history of unrest, marked by frequent military clashes, overthrown governments, and insurgency.

Although climate change is a global phenomenon, developing countries – especially urban centers – are the most vulnerable to the negative health impacts of climate change.  In “Urban Governance of Climate Change and Health,” a working paper for the Norwegian Institute for Urban and Regional Research, author Siri Bjerkreim Hellevik reviews the existing literature on governments’ responses to climate change and health in developing urban centers. Overall, Hellevik concludes that there is a substantial need for more research specifically linking the two. She offers several recommendations for urban policymakers to consider, including developing an integrated and multi-level approach, and recognizing that human health and urban development are issues of global justice.

Yunnan province is a microcosm of the intertwined natural resource challenges facing China. Dams, development, deforestation, drought, and climate change threaten China’s most biodiverse province – all while it increases its exports of agricultural products and electricity to China’s coastal provinces. These competing demands bring into question the sustainability of China’s development paradigm and the country’s environmental security.

The original version of this article, by Stewart M. Patrick, appeared on the Council on Foreign Relations’ The Internationalist blog.

Not long ago, concerns about environmental degradation were marginal in U.S. national security deliberations. What a difference climate change has made. Foreign policy officials and experts are starting to recognize profound linkages between planetary health, economic prosperity, and international security. These connections were on full view last Wednesday, when the Council on Foreign Relations (CFR) teamed up with Conservation International (CI) to convene a symposium, “Global Resources, the U.S. Economy, and National Security.”

Balbine is moving through her coastal village of Andavadoaka with a sense of urgency. Normally she works as a community-based distributor for Blue Ventures’ integrated population, health, and environment (PHE) program in southwest Madagascar, providing health information and products to her community. However, since Cyclone Haruna swept through the region several weeks ago, Balbine has been especially busy distributing diarrhea treatment kits to mothers caring for sick infants, providing families sleeping out in the open with mosquito nets to protect against malaria, setting up water filtering stations, and emphasizing the importance good hygiene practices.

Much ink has been spilled on the growing trend of global land grabs – land purchased en masse in developing countries like Ethiopia by foreigners mainly for agricultural export. But along with land, investors often also gain the right to use local water, and sometimes with little consideration for local livelihoods. Fred Pearce recently looked into these “water grabs” in a series for National Geographic.

Cooperation, not conflict; that’s the theme of this year’s World Water Day. Collaboration over water has been the rule rather than the exception over the past 70 years, UNESCO explained in the launch of their International Year for Water Cooperation initiative earlier this year (which the rest of the UN is thoughtfully supporting).

But the fact that there’s need for such an initiative shows that water conflict and other water issues are not far from the minds of global policymakers. Scarcity, drought, climate change, food security, disease – water impacts people and their governments in so many ways. Here’s a rundown of some of our best related posts.