Pump water by walking to work

“Human Pump” by Gunwook Nam attempts to solve the global water crisis by capturing kinetic energy generated by human foot traffic in order to power a large system of pumps to move clean drinking water to the earth’s surface in the form of a waterfall. Some very nice renderings of the design at the link below although the resulting water might need a better form of containment than the modeled shower-like output.

Human Pump via Inhabitat