In 1931, John B. Sparks distilled human civilization into a single chart. Even today, it’s great infographic design. If time is a river, the Histomap, created by John B. Sparks and first published by ...

At least 85 percent of Americans use a municipal water system for drinking water or sewer services. This interactive infographic explains how water moves to and from your tap. In the United States, ...

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In the bar chart below, the funds were lumped together by the hydrologic region in which the individual systems are located, with the San Joaquin region receiving the most funding and the South Coast ...