Taxonomy term

water

The energy-water nexus: Managing water in an energy-constrained world

Water can be tricky. With too little, crops die, industries move away, power plants fail, ecosystems suffer and people go thirsty. With too much, floods ruin infrastructure, destroy crops, spread waterborne diseases, and disrupt flows of clean water, wastewater, power and transportation. We want water at the right time and in the right place because moving and storing water require effort. We also want it at the right quality and the right temperature. If we had unlimited clean energy at our disposal, we could desalinate the ocean, providing enough potable water for everyone, everywhere. Energy provides a constraining factor on the world’s management of water issues; likewise, water is a constraining factor on the world’s energy supply. This interdependence is the energy-water nexus and the way we manage the delicate relationship between energy and water will have major implications for the future of both critical resources.

30 Jun 2013

Sun provides water to the moon?

Until recently, the consensus in the scientific community was that the moon was bone-dry. Scientists thought that the massive impact responsible for the moon’s creation would have driven away the hydrogen needed to form water. In the past four years, however, that view has melted away. The first suggestion of water was in 2008, when researchers identified the presence of water in volcanic lunar glass. In 2009, satellites orbiting high above the moon identified water on its surface.

14 Oct 2012

Neutralizing the rain: After much success in the battle against acid rain, challenges remain

Every Tuesday at 9 a.m., Dave Warner collects water from a white plastic 3.5-gallon tub that sits on a strip of tall grass between two cornfields at the University of Nebraska Agricultural Research and Development Center near Mead, Neb. For more than 30 years, the bucket has collected all forms of precipitation — from hail to rain to snow — to be analyzed for nitric and sulfur oxides, the main components of acid rain.

21 Jun 2012

All that glitters... Acid mine drainage: The toxic legacy of gold mining in South Africa

More than a century of mining near Johannesburg, South Africa, has left the region littered with mounds of waste and underlain by a network of abandoned mine shafts. Together, they are producing a toxic brew of acid mine drainage.

23 Sep 2011

Endangered snow: how climate change threatens West Coast water supplies

If you turn the tap on in Seattle, the water flowing from the faucet likely originated as a clump of snow. In winter, snowflakes fall in the Cascades, accumulating in thick snowpack. The snowpack stores water in winter and slowly releases it in spring and summer as temperatures warm and snow melts. As snowmelt flows down the mountains, some of it is diverted and collected in reservoirs — destined to arrive in the homes of more than 1 million people.

17 Jun 2011

Strategies to meet our water and energy needs: Insight from a Texas "Treemap"

"This is our generation’s Sputnik moment,” declared President Barack Obama in the 2011 State of the Union address, challenging the nation to pursue a future of cleaner energy.

As we did a generation ago, we now face significant challenges — challenges that need to be met sooner rather than later to protect and grow our economy, build energy autonomy and preserve our resources for future generations. These challenges center on two resources: energy and water.

20 Apr 2011

How oil and water helped the U.S. win World War II

World War II U.S. Gen. Omar Bradley is often cited as the originator of the famous military quote: “Amateurs study tactics, professionals study logistics.” Irrespective of its origins, the adage holds true for most extended conflicts — and World War II is no exception. Managing logistics for the production, movement and consumption of energy was one of the critical determinants of success during the war.

15 Feb 2011

Blogging on Earth: Driveway sealants add PAHs to environment

Winter is hard on asphalt: Water that seeps into tiny cracks freezes and expands, breaking the asphalt apart. That’s why homeowners and business owners across the U.S. use sealants to protect their driveways and parking lots.

16 Dec 2010

Impossible Odds, Irrepressible Hope: Pakistan's water woes and the science that can solve them

Most residents of developed countries don’t think about their water running out or worry about their water leading to the death of their children. In Pakistan, those are distinct possibilities.

05 Oct 2010

Finding water in the heart of darkness: Afghanistan's ongoing water challenges

Fieldwork in Afghanistan is not like most geology fieldwork. “When I landed, the first thing I had to do was to put on a bulletproof vest,” says Tom Mack. He was part of a U.S. Geological Survey team that evaluated water resources in the Kabul Basin, in the north-central part of eastern Afghanistan, a couple of years ago. “It was strange to wear the vest, but eventually you get used to it.” There was a lot to get used to, he says. No matter where Mack went, he had to get special permission to be there.

14 Jun 2010

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