PITTSBURGH (KDKA) -- About 71% of the Earth's surface is covered by water. Still, for many communities around the world, and even some here in the U.S., water is in short supply. That's why there's ...

Filters made from tree branches can purify drinking water sources, a new study finds. Prototypes of these xylem filters, tested in India, show promise as a low-cost, natural filtration option. The ...

Every spring, the snow begins to melt and make its way down the mountains, across marshes and meadows, and through the 63 tributaries flowing into Lake Tahoe. The water flowing down Tahoe’s 501-square ...

The Gathering Place is going green. The first wave of planting is underway around a series of ponds that filter and recycle water. The lodge and wetlands on the northern end of the park will be the ...