Northern and Southern trees meet peacefully at the Delaware Water Gap National Recreation Area, a National Park Service area that includes the states of New Jersey and Pennsylvania.

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But that, it says, opened up a gap with the earthen base and the water rushed down into the gap.

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McKinsey estimated that by 2030, there will be a 40% gap between global water supply and demand.

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The researchers were able to comb a single molecular fibre between two narrowly spaced gold wires, as an evaporating water drop receded across the gap between them.

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Tidal inlet: a river mouth or narrow gap between islands, within which salt water moves landwards during a rising tide.

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Asadi's boat glides through the gap in the dike that brought the first water back into the marshes.

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Swach hopes to bridge this gap between technology and the basic human need of clean drinking water.

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Layton and I used to climb Bald Man's Gap, the exact apex of the divide he taking care not to spill the glass of water clutched in between his hands, while I minded a rudimentary pinhole camera that I had fashioned from a shoe box.

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