Water

Leaky Fukushima nuclear plant raises seafood poisoning concerns

Publication: NBC News   Date: August 20, 2013   View Article

The 300 tons of radioactive water leaked to date from a storage tank at the crippled Fukushima nuclear plant in Japan is raising new concerns about the safety of seafood from the region, according to scientists.

Highly contaminated water from the newly reported leak is seeping into the ground, officials with Tokyo Electric Power Company told reporters Tuesday. They do not believe the water has reached the ocean, given the distance of the tank from the harbor. Still, it is likely only a matter of time before it does, said William Burness, an oceanographer at Florida State University, who studies environmental radioactivity.

The concern is that the radioactive water leaking from the storage tanks will eventually end up in the ocean and contaminate the marine environment, in particular fish that people eat, Burnett told NBC News.

When it rains: Rising carbon emissions (finally) making world wetter, study says

Publication: NBC News   Date: June 30, 2013   View Article

Keep the rain boots and slickers handy, suggests new research that indicates the world will get wetter as cities rein in air pollution from power plants, factories and cars.

Climate scientists thought global precipitation would rise in step with rising greenhouse gases that are warming the atmosphere, allowing it to hold more water. But that has not occurred, according to Peter Stott, a climate scientist with the Met Office Hadley Center in the United Kingdom.

Natural gas found in drinking water near fracked wells

Publication: NBC News   Date: June 24, 2013   View Article

Elevated levels of methane and other stray gases have been found in drinking water near natural gas wells in Pennsylvania’s gas-rich Marcellus shale region, according to new research. In the case of methane, concentrations were six times higher in some drinking water found within one kilometer of drilling operations.

“The bottom line is strong evidence for gas leaking into drinking water in some cases,” Robert Jackson, an environmental scientist at Duke University in Durham, N.C., told NBC News. “We think the likeliest explanation is leaky wells,” he added.

Energy future may be swamped in fracking wastewater, scientists warn

Publication: NBC News   Date: May 16, 2013   View Article

The current boom in U.S. natural gas production from glassy shale rock formations is poised to usher in an era of energy independence and could bridge the gap between today’s fossil-fuel age and a clean-energy future. But that future may be swamped in a legacy of wastewater, a new study suggests.

Natural gas production is soaring thanks to hydraulic fracturing, or fracking, a technique that shoots several million gallons of water laced with chemicals and sand deep underground to break apart chunks of the glassy rock, freeing trapped gas to escape through cracks and fissures into wells.

An average of 10 percent of this water flows back to the surface within a few weeks of the frack job. The rest is absorbed by the surrounding rock and mixes with briny groundwater, explained Radisav Vidic, a civil and environmental engineer at the University of Pittsburgh.

Whey cool: Dairy waste turned into electricity

Publication: NBC News   Date: March 15, 2013   View Article

Get a whiff of this: Milky rinse water flowing from Wisconsin cheese factories will soon be used to generate enough electricity for 3,000 homes, thanks to an innovative solution to a growing wastewater problem.

For years, the milky rinse water was spread on farmland as a low-grade fertilizer, but the practice was curtailed in the face of more stringent environmental regulations to limit runoff pollution, especially in the winter months when spraying on frozen ground was outlawed.

High-school senior invents life-saving water filter

Publication: NBC News   Date: March 14, 2013   View Article

A high-school senior has built a simple water filter using a common tree seed that can effectively remove bacteria such as E. coli and other pollutants. Distributing the easy-to-follow instructions on how to build the filter to developing countries could potentially save lives, she said.

“For people who are currently drinking contaminated water and don’t have access to another (filtration) method, I think this is really a step in the right direction,” Meghan Shea, an 18-year-old student at Unionville High School from West Chester, Penn., told NBC News.

The science of sinkholes: Common, but rarely catastrophic

Publication: NBC News   Date: March 1, 2013   View Article

A Florida man is missing after an apparent sinkhole opened in his bedroom in the middle of the night, sucking him and his bed deep into the earth. As frightening as it sounds, sinkholes happen all the time, according to geologists. Usually, though, they are slow-motion processes that can take years.

Sinkholes of the sort that swallowed the Florida man form when slightly acidic groundwater dissolves limestone or similar rock that lies beneath the soil creating a large void or cavities. When the overlying ceiling can no longer support the weight of the soil and whatever is on top of it, the earth collapses into the cavity.

© 2008-2010 Collected Writings By John Roach