In the past few decades, data about earth sciences-including geography, geology,

hydrology, climatology, and meteorology-and associated natural disasters have

increasingly been visualized on the Internet, making data available to the public in

the form of interactive maps, charts, lists, and animations. In most cases, users can

organize and articulate the data according to their needs and interests, enabling

them both to see the big picture-across their state, nation, or planet-and to

localize the visualization in their own neighborhoods. In doing so, the public can

visualize natural phenomena that continue to shape the planet-and the ways that

we inhabit it-by posing risks that range from minor nuisances (sleet that

lengthens a morning commute) to devastating hurricanes, tornados,

and earthquakes that may seriously jeopardize life and property.