Thursday August 29, 2024
Department of Energy —
From thirsty agricultural crops to whitewater rafters contemplating a low river, a lack of water is the most obvious in the summertime. Its impact is particularly clear when many people rely on the same source of water. What happens in the Colorado River’s East River Watershed affects 40 million people from seven U.S. states as well as Mexico. Around the world, similar mountainous areas provide the water that helps feed one to two billion people. In fact, scientists call these regions “the world’s water towers.”
But problems with these watersheds don’t start in the summer or even the spring. In fact, they begin in the winter, when snow isn’t building up in the Rocky Mountains and similar areas as it once did. The snow that falls – or doesn’t fall – in the mountains has huge effects on what’s available for the rest of the year. Future climate change may cause less and less snow to fall in these areas and reliably convert to water downstream.
Researchers supported by the Department of Energy’s (DOE) Office of Science are working to understand the role of snow drought, how to measure it in the future, and how to use such data to inform decision-making.