Tag Archives: Phys.Org

China’s Virtual Water Flows: The Rich Get Richer, the Poor Get Thirstier

Virtual water flows in China. Copyright 2014 American Chemical Society.

New research shows that China’s wealthier and wetter southern provinces are draining already-scare water supplies from arid northern provinces, exacerbating shortages and increasing risk of crisis conditions.

The study, conducted by the International Institute for Applied Systems Analysis (IIASA) with the University of Maryland and published in the journal Environmental Science & Technology, uses the economic concept of “virtual water.” That refers to water tracked through trade of goods that require water to produce, as most do. The researchers say it is the first study to take water scarcity into account rather than treating all water as equal in the analysis.

The researchers say the study helps lay the groundwork for better water-resource management. One upshot is the idea that it might be smarter on the whole not to import water-intensive goods from the dry north to the wet south, even as the country gears up massive efforts to divert water in the other direction because of the shortages.

Read more:

The study: Virtual Scarce Water in ChinaEnvironmental Science & Technology

China’s arid north feeds water-rich south – Reuters

Following China’s water: a threat of scarcity – Nature World News

China’s hidden water footprint – Phys.org

Virtual water highlights China’s hidden water footprint – Science 2.0

Related posts:

 China Plans to Desalinate Vast Amounts of Sea Ice

China Raises Water Prices for Top Users

Mapping the World’s Most Water-Stressed Countries

Serious Water Conservation Demands Layered Approach and Emotional Commitment

Study: Freshwater Shortage Will Double Climate Change’s Impact on Agriculture


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Filed under Agriculture, Asia, Climate Change, Drought, Industry, Research, Rivers and Watersheds, Sustainability, Water Shortage

Oceans of Water Beneath Our Reach

Image: tomburke.co.uk

Image: tomburke.co.uk

A study published yesterday in the journal Science suggests oceans of water are locked in rock about 400 miles below Earth’s surface. It’s not liquid, ice or vapor, but rather hydrogen and oxygen embedded in the molecular structure of mineral rock. Researchers think it may help explain some things about how the planet formed, and how oceans gathered on the planet’s surface, which is great. But for many observers the first question is, how do we get at it? And the answer is a flat no, we don’t get anywhere near this stuff, much less turn it into a usable form, because it’s far too deep in the mantle. It’s 400 miles down, and the deepest humans have ever drilled is less than 10 miles.

Read more:

Dehydration melting at the top of the lower mantleScience

Water discovered deep beneath Earth’s surfaceUSA Today

New evidence of oceans of water deep in the Earth – Phys.Org

Oceans of water locked 400 miles inside Earth – Discovery News

Related posts:

Study Describes Vast Reserves of Water Under Ocean Floors

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Filed under Groundwater, Oceans, Research, Science, Water Resources