Eating Water is a three-minute autorun film about the challenges of feeding a growing world population. Featuring researcher Kate Brauman from the Global Landscapes Initiative at the University of Minnesota, the film reveals an intriguing fact as it opens: we "eat" more water than we drink. The water it takes to produce our food far outstrips the water we drink and use for other purposes. The show is built around two datasets: (1) mapping the land used for farming and grazing around the world; and (2) agricultural efficiency, as measured in how much corn is produced per liter of water. Because we're already using virtually all available farmland, the challenge in the coming decades will be to feed two billion more people by 2050 on the land already used for agriculture. Climate change will challenge our ability to do that, because we don't know how rainfall patterns will be affected around the world.
Eating Water is one in a series of four SOS films that use data visualizations and actual scientists to tell stories about the impacts of climate change. No other single natural factor affects Earth as much as humans now do. Separately, each film stands alone, focusing on a single area of human impact, and features a researcher working in this area. Together, the films tell a bigger story about the human-generated effects of global climate change.