Environment – Page 139 – Shamskm: A site to exchange knowledge and solutions

Graphene Membranes May Lead To Enhanced Natural Gas Production, Less CO2 Pollution, Says CU Study

By Guest PostOctober 16, 2012Environment, Science2010, andre geim, argon, atomic crystal, atomic scale, carbon atom, carbon dioxide, chicken wire, colorado boulder, diameter, emission, energy-efficient, engineering faculty, England, exhaust pipe, gas molecule, graphene membrane, hexagonal, hydrogen, industrial scale, john pellegrino, konstantin novoselov, lattice, luda wang, manchester university, membrane, methane, molecular sieve, molecular size, nanometer, natural gas, nature nanotechnology, nitrogen, nobel prize, oxidative etching, pore, power plant, production, scott bunch, sieving, size selective, steven koenig, sulphur hexafluoride, ultraviolet light, university

Engineering faculty and students at the University of Colorado Boulder have produced the first experimental results showing that atomically thin graphene membranes with tiny pores can effectively and efficiently separate gas molecules through size-selective sieving.

The findings are a significant step toward the realization of more energy-efficient membranes for natural gas production and for reducing carbon dioxide emissions from power plant exhaust pipes.

Mechanical engineering professors Scott Bunch and John Pellegrino co-authored a paper in Nature Nanotechnology with graduate students Steven Koenig and Luda Wang detailing the experiments. The paper was published Oct. 7 in the journal’s online edition. (more…)

What Will You Do If an Earthquake Hits?

By Guest PostOctober 14, 2012Environmentaftershocks, earthquake, earthquake drills, earthquake preparedness, great shakeout

Join the Great ShakeOut on October 18, 2012, to prepare

The Central Virginia Seismic Zone, it’s called, and it sometimes shakes everything in sight. (more…)

Scientists Uncover Diversion of Gulf Stream Path in Late 2011

By Guest PostOctober 14, 2012Environmentgulf stream, gulf stream path, ocean temperatures, warm core rings, warmer waters, warming periods

Warmer waters flowed to shelfbreak south of New England

At a meeting with New England commercial fishermen last December, physical oceanographers Glen Gawarkiewicz and Al Plueddemann from the Woods Hole Oceanographic Institution (WHOI) were alerted by three fishermen about unusually high surface water temperatures and strong currents on the outer continental shelf south of New England. (more…)

State-Mandated Planning, Higher Resident Wealth Linked to More Sustainable City Transportation

By Guest PostOctober 13, 2012Environmentanna mccreery, columbus, ecosummit 2012, environmentally friendly, income, index, las vegas, los angeles, metropolitan area, new orleans, ohio, per capita, pittsburgh, population density, public transit, seattle, socioeconomic factor, solo commuter, span, state university, sustainability, time, transportation ecoefficiency, transportation practice, transportation system, US, wealthier

COLUMBUS, Ohio – Transportation practices tend to be more environmentally friendly in wealthier metropolitan areas located within states that mandate comprehensive planning, new research suggests.

The study involved an examination of 225 U.S. metropolitan areas between 1980 and 2008 to gauge how sustainable their transportation practices were and determine what kinds of socioeconomic factors appeared to influence those practices. (more…)

Coastal Power Surveys

By Guest PostOctober 10, 2012Environmentcoastal power, drilling platforms, energy costs, floating lab, offshore energy, oil platforms, wind turbines

UD’s Messer gauges Delaware beachgoers’ reactions to offshore energy

The University of Delaware’s Kent Messer leads a research team that is conducting two studies at the Delaware coast to determine how people would react to offshore energy production and how that could impact the state’s economy. (more…)

Scientists Uncover Vast Differences in Earth’s Polar Ocean Microbial Communities

By Guest PostOctober 10, 2012Environmentalison murray, Antarctica, arctic ocean, biodiversity, biodiversity pattern, biogeographically, canada, changing climate, coast, community, continental, drainage basin, earth, environmental selection, flow, france, freshwater, glacial melt, global ocean, jean françois ghiglione, kevin bakker, marine, marine life, marine microbe, michigan, microbial community, microbial diversity, new zealand, ocean, oceanic circulation, oden, polar ocean, polar region, polar year, pole, sea ice, sloan foundation, southern, spain, structure, Sweden, swedish icebreaker, united states, university

ANN ARBOR— An international team of scientists, including a University of Michigan graduate student, has demonstrated that a clear difference exists between the marine microbial communities in the Southern and Arctic oceans, contributing to a better understanding of the biodiversity of marine life at the poles.

The most comprehensive comparison of microbial diversity at both of Earth’s polar oceans showed that about 75 percent of the organisms at each pole are different. This insight sheds light on newly recognized biodiversity patterns and reinforces the importance of studying Earth’s polar regions in the face of a changing climate. And it highlights the need for further research on the impacts of sea ice, seasonal shifts and freshwater input in both regions. (more…)

USGS Releases First Assessment of Shale Gas Resources in the Utica Shale: 38 trillion cubic feet

By Guest PostOctober 7, 2012Environmentappalachian basin, barrel, brenda pierce, conventional oil, domestic, first assessment, gas liquid, geological survey, greater, green, hydrocarbon, marcellus shale, maryland, methodology, natural gas, new york, ohio, Pennsylvania, petroleum basin, protocol, recoverable oil, river basin, rock formation, source rock, southwestern wyoming, tcf, unconventional oil, united states, upper ordovician, US, usgs, utica shale, virginia, west virginia

The Utica Shale contains about 38 trillion cubic feet of undiscovered, technically recoverable natural gas (at the mean estimate) according to the first assessment of this continuous (unconventional) natural gas accumulation by the U. S. Geological Survey. The Utica Shale has a mean of 940 million barrels of unconventional oil resources and a mean of 208 million barrels of unconventional natural gas liquids.

The Utica Shale lies beneath the Marcellus Shale, and both are part of the Appalachian Basin, which is the longest-producing petroleum province in the United States. The Marcellus Shale, at 84 TCF of natural gas, is the largest unconventional gas basin USGS has assessed. This is followed closely by the Greater Green River Basin in southwestern Wyoming, which has 84 TCF of undiscovered natural gas, of which 82 TCF is continuous (tight gas). (more…)

Climate Change to Cripple Southwestern Forests

By Guest PostOctober 1, 2012Environmentancient, arizona, atmospheric evaporative, chandana gangodagamage, climate change, climate data, climate record, climate scenario, climate trend, climatological variable, colorado, computer model, craig allen, cultural center, daniel griffin, distribution, drought tolerant, fire, forest, forest drought, future, geological survey, greenhouse gas, growth record, las conchas, marcia mcnutt, megadrought, mesa verde, michael cai, nate mcdowell, new mexico, park williams, pinon pines, prediction, projection, pueblo indians, puebloan, regional climate, regional ecosystem, scientist, southwestern, southwestern forest, species, stress index, thomas swetnam, tree killing, tree mortality, tree ring, trees, united states, university, US, usgs, wildfire, winter precipitation

Trees Face Rising Drought Stress and Mortality as Climate Warms

LOS ALAMOS, N.M. — Combine the tree-ring growth record with historical information, climate records, and computer-model projections of future climate trends, and you get a grim picture for the future of trees in the southwestern United States. That’s the word from a team of scientists from Los Alamos National Laboratory, the U.S. Geological Survey, University of Arizona, and other partner organizations.

The research, published in Nature Climate Change this week, concluded that if the Southwest is warmer and drier in the near future, widespread tree mortality likely will cause substantial changes in forest and species distributions. (more…)

Category Archives: Environment