Showing stories 151-175 out of 177 stories. <<<2 | 3 | 4 | 5 | 6 | 7 | 8>>>
10-Dec-2010 Berkeley Lab scientist walks the walk -- produces more electricity than he consumes
Energy management engineer Steve Greenberg bikes three miles uphill to work every day, rain or shine. He refuses to use a desktop computer, insisting on a less energy-intensive laptop. And to avoid using paper towels each time he visits the bathroom, he keeps a hand towel in his office. Those are only a few of the things he does to reduce his carbon footprint—and that's just at work.
6-Dec-2010 Argonne to hold annual Introduce a Girl to Engineering Day
Girls in sixth through eighth grades are invited to learn all about science and engineering during the annual Introduce a Girl to Engineering Day on Thursday, Feb. 24, 2011, at the US Department of Energy's Argonne National Laboratory.
19-Nov-2010 Supercomputers assist cleanup of decades-old nuclear waste
A research team led by Peter C. Lichtner of Los Alamos National Laboratory is using the Oak Ridge Leadership Computing Facility's Jaguar supercomputer, located at Oak Ridge National Laboratory, to build a 3-D model of an underground uranium waste plume at the Hanford Site's 300 Area. A better understanding of the underground migration properties of uranium, which has infiltrated the Columbia River, may aid stakeholders in weighing options for contaminant remediation.
1-Sep-2010 Supercomputing brings the climate picture into focus
Recent advances in supercomputing have brightened the future of climate modeling, but they also bring to light complicated questions about the fundamental workings of our planet and our atmosphere.
17-May-2010 NETL's green projects promise energy efficiency all year round
Forty years after the first Earth Day, it is almost second nature to toss a can or plastic bottle into the recycling bin, but being green is about much more than reusing materials. Just as individuals make a personal decision to "reduce, reuse, and recycle," businesses, industry, and other organizations are making the same commitment to being green.
31-Mar-2010 Time's rising tide may swamp Delta marshes
While marshes in the Sacramento-San Joaquin Delta area are currently keeping pace with rising sea levels, they may not be sustainable under future sea-level increases.
6-Jan-2010 Argonne advanced battery research driving to displace gasoline
In excess of seven million barrels of gasoline are consumed by vehicles in the United States every day. As scientists race to find environmentally sound solutions to fuel the world's ever-growing transportation needs, battery researchers are exploring the promise of lithium-air battery technology.
10-Dec-2009 Probing life's extremes in Yellowstone
Frank Roberto trawls Yellowstone's thermal pools for viruses and microbes. On a recent trip to the park, he hunted for bacteria that could aid in the production of biofuels and bioplastics.
6-Oct-2009 Conference tackles interstate transmission
The US electricity grid is strained to its limit, and the nation's windiest and sunniest places are rarely near cities that generate high demand. Finding ways to string new power lines across several states is a challenge for even the most creative regulators and energy analysts determined to increase America's use of renewable energy.
16-Sep-2009 Both directions at once
The challenge of controlling climate change is a goal that, to many, appears to be at odds with the equally important goal of energy security. However, the idea that the two goals are somehow mutually exclusive is not one accepted by ORNL energy researcher David Greene. "We don't want to sacrifice one for the other," he says. "We want -- and we believe it possible -- to achieve environmental goals and energy security goals at the same time.
5-Feb-2009 The secrets of Darwin's dinobird
For centuries, the field of archaeology has depended on what's visible to the naked eye. Now, researchers are revealing what lies beneath the surface of a key evolutionary fossil, Darwin's "dinobird."
2-Dec-2008 Mother of pearl secret revealed
Advanced Light Source scientists Andreas Scholl and Nobumichi Tamura were part of a team that used beams from the PEEM-3 and x-ray diffraction microscopes to reveal new secrets behind the mysterious formation of mother of pearl, or nacre, the inner lining of the shells of abalone and certain other mollusks.
10-Jun-2008 US Secretary of Energy concludes productive G8+3 Energy Ministerial Meeting in Japan
US Secretary of Energy Samuel W. Bodman today concluded his weekend visit to Aomori, Japan where he participated in the Five-Country and the Group of Eight, China, India and Korea Energy Ministerial meetings hosted by Japan's Minister of Economy, Trade and Industry Akira Amari. While in Japan, the Secretary met with ministers and other high-level government officials from G8 countries, China, India and Korea to discuss ways to enhance global energy security, while simultaneously combating global climate change.
3-Apr-2008 DOE technology monitors CO2 injection in Australian gas field
Australia has launched the first carbon sequestration project in the southern hemisphere with the help of technology developed by researchers at the US Department of Energy. The Otway Basin Pilot Project will inject and monitor carbon dioxide in a depleted gas field in southeastern Australia to demonstrate the feasibility of storing the greenhouse gas in the Waarre Formation of the Otway Basin, and similar formations worldwide, to fight global climate change.
28-Mar-2008 US Department of Energy to provide up to $2.4M to advance solar energy in 12 US cities
US Department of Energy Secretary Samuel W. Bodman today announced that DOE will make available up to $2.4 million to 12 cities across the country selected as Solar America Cities, chosen for their commitment and comprehensive approach to the deployment of solar technologies and the development of sustainable solar infrastructures. These projects further President Bush's Solar America Initiative, which aims to make electricity from solar photovoltaics cost-competitive with conventional electricity by 2015.
15-Jun-2007 Cytochrome studies provide biofuel cell potential
Researchers from Pacific Northwest
National Laboratory and collaborators have
purified the protein called outer membrane
cytochrome A (OmcA) from Shewanella
oneidensis, a bacterium with promise for
bioremediation of contaminants and the
design of microbial fuel cells. They have
measured its ability to bind and transfer
electrons to mineral hematite, a solid ferric
oxide. The team has shown that purified
OmcA can directly reduce solid metals
and that purified proteins are a next step
in biofuel cell development.
15-Jun-2007 Aerosol particles and cloud droplets -- Microscopic modulators of climate
Scientists around the world use
sophisticated computer models to
simulate future scenarios of all types -- including global climate. Researchers
at Pacific Northwest National
Laboratory are playing a key role in
the improvement of these models by
providing new information about the
role of aerosols in the atmosphere.
15-Jun-2007 Dust in the wind
In March 2006, a major dust storm
occurred in Niamey, Niger. Although a
common occurrence, this was the first
time both satellite- and ground-based
instruments were used simultaneously
to assess the impact of airborne Saharan
dust on incoming and outgoing solar
15-Jun-2007 On thin icege/gi
Thin clouds high in the upper troposphere, like cirrus clouds, may have a significant influence on Earth's climate and enhance the "greenhouse effect" by absorbing more of
the sun's radiation than they take in. Unknown is how ice crystals in these clouds absorb and reflect radiant energy and enhance the amount of radiant energy emitted toward the earth's surface.
15-Jun-2007 Iron nanoparticles could lead to more effectives carbon tetrachloride cleanup
Researchers at Pacific Northwest National Laboratory, the University of Minnesota and Oregon Health and Science University discovered that not all iron nanoparticles
are created equal. Some, in fact, may be especially useful for cleaning up groundwater contaminated with carbon tetrachloride.Bi%3A1181862272
14-Jun-2007 Taming the hairy mushroom
Fungi (yeasts, molds and mushrooms) have gotten a bad rap over the years. They have been blamed for infecting food crops and represent some of the most universal and costly pathogens known to man -- both of
which overshadow the important contributions fungi make, such as providing critical agricultural nutrients and compounds for antibiotics.
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.