Trend Projection
Trend Projection: When numerical data are available, a trend can be plotted on graph paper to show changes through time. If desired, the trend line can then be extended or "projected" into the future on the basis of the recent rate of change. Such a projection shows where the trend should be at some point in the future assuming there is no shift in the rate of change. Example: A population with a steady 2 percent rate of annual growth will double in about thirty-five years.
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Turn future data into SOLID maps (dataScultures) by 3D printing
As a former student of Robert Jungk I just started to produce dataSculptures on vital future data series- like World population Year 2050.
With DataSculptures. 3D printing technology has something to offer for communication: Valid data series and information become solid. Hand the sculptures around in meetings, put them on your desks, conference tables, in your classrooms. Let blind people feel the data. It is not for the eyes only. Think of future dataSculpture gardens.
See more examples at
http://www.visualizing.org/visualizations/world-population-2050-data-scu...
and source
http://www.sculpteo.com/en/s/nostromo/