We visited a community of Maasai who are already suffering from impacts of climate change as droughts have become more frequent and severe. Normally the short rainy season occurs from late October through November, and the long rains go from March through June. We arrived just after the long rains had started. Even so, the local papers were again warning that there will be food shortages because of drier conditions.

MORE LIKE THIS: Dirty Weather // Extreme Weather // Feature // Food Security // Water Supplies

My seven-year-old daughter had asked me in Yosemite how water gets up the mountain. Someday soon, we may find ourselves struggling with questions just as profound about how our national parks will survive climate change.

MORE LIKE THIS: Feature // Local Action // Water Supplies

Dean Jacobsen and Olivier Dangles, from Copenhagen University and the French Institute for Research and Development, respectively, led an expedition to the Antisana volcano in Ecuador with an international group of students in freshwater ecology.

MORE LIKE THIS: Ecuador // Feature // Water Supplies

We can’t solve a global climate problem overnight. But here in California, the Sierra Nevada Alliance and Sierra Nevada Conservancy are doing their part to respond to the decline in snowpack.

MORE LIKE THIS: Expedition // Feature // Water Supplies

Ecuador — In mountainous areas, water flows from melting glaciers into rivers, lakes and reservoirs, where it is used for drinking, irrigation, and even hydropower.

MORE LIKE THIS: Expedition // Hide // Water Supplies