Long before climate change was evident, California began planning a system of canals and reservoirs to carry water from the mountains to drier farms and cities. It’s no longer enough.

Herat is home to an India-built dam that provides water for drinking, irrigation and bathing for much of western Afghanistan. If the Taliban control that water, they control the population.

As rivers run dry in the Rocky Mountains and the West, its easy to wonder where all the snow you see on mountain peaks goes. Some of it ends up in the air, but researchers aren’t sure how much.

It's an ecological disaster, but my research shows we should not lose hope.