Posts Tagged ‘pollution’
Weeds grow more resistant to herbicides
PENN STATE (US) — Over-reliance on one type of herbicide for weed control on US farms has created a dramatic increase in the number of genetically resistant weeds, a new study shows. Continue…
Friday, February 10, 2012 13:24 - 0 Comments
Earth & Environment - Dec 21, 2011 14:48 - 0 Comments
Nitrogen ‘double whammy’ could alter lakes
U. WASHINGTON (US) — Nitrogen derived from human activities has polluted lakes for more than a century. The fingerprint is evident even in remote lakes thousands of miles from the nearest city. (more…)
Earth & Environment - Dec 5, 2011 9:59 - 3 Comments
Opals leave radioactive waste inert
STANFORD (US) — Researchers are proposing the use of opal to sequester uranium at contaminated nuclear sites. (more…)
Top Stories - Nov 18, 2011 10:49 - 3 Comments
PCB exposure tough on turtles
U. MISSOURI (US) — Exposure to the chemical pollutant PCB takes a toll on turtles, stunting growth and lowering bone density, according to a new study that could offer insight on how PCBs affect humans. (more…)
Health & Medicine - Sep 15, 2011 11:04 - 0 Comments
Toxic metals mix it up in California air
UC DAVIS (US) — Very fine and ultrafine metal particles in the air are able to penetrate deep into the lungs and cardiovascular system, damaging arteries and the heart itself. (more…)
Earth & Environment - Aug 9, 2011 14:07 - 0 Comments
Aerosols haze climate predictions
U. MICHIGAN (US) — Aerosols mask the effect of greenhouse gases on the Earth’s climate, and satellite-based projections significantly underestimate their impact, a new study finds. (more…)
Earth & Environment - Jul 25, 2011 14:46 - 0 Comments
Mercury leaves first footprint in soil
INDIANA U. (US) — Mercury’s first step toward contaminating watersheds and the fish that swim in them can be found in the soil surrounding coal-fired power plants in industrialized cities. (more…)
Science & Technology - Jun 23, 2011 14:59 - 0 Comments
Coated sand filters dirty water
RICE U. (US) — A bit of nanotech “magic” is turning sand into a super-effective water purifier. (more…)
Earth & Environment - May 11, 2011 13:58 - 0 Comments
Pollutant-H20 mix key to climate change
U. OREGON (US) — The impact that surface molecules of water have on airborne pollutants should be considered in climate modeling, given their significant effect on the future of global warming. (more…)
Top Stories - Feb 18, 2011 11:17 - 1 Comment
On coral reef, location seals fate
UNC-CHAPEL HILL (US) — Off the coast of Belize researchers have identified a troubling change in coral growth patterns on the world’s second largest barrier reef system. (more…)
Earth & Environment - Nov 8, 2010 16:10 - 0 Comments
Radioactive cleanup takes (more) time
IOWA STATE (US) — Distorted formulas have wrongly swayed theories of how long it takes to transform a contaminated area into one free of pollution. (more…)
Earth & Environment - Oct 21, 2010 13:44 - 0 Comments
Plant plastics not so green after all?
U. PITTSBURGH (US) — Biopolymers may be the more eco-friendly material, but petroleum-derived plastics can be less environmentally taxing to produce. (more…)
Earth & Environment - Jul 12, 2010 15:15 - 0 Comments
When birds migrate, will oil go with them?
CORNELL (US)—As oil washes ashore along the Gulf Coast, birders are asked to keep an eye on nests—not just near water, but hundreds of miles inland as well. (more…)
Earth & Environment - Apr 15, 2010 12:57 - 0 Comments
Tapping nature to clean up radioactive sites
U. CHICAGO (US)—Some bacteria can change Uranium (VI)—which is radioactive, toxic, and water-soluble—into a more insoluble, stationary, and thus less harmful substance. A team of scientists is trying to determine how to harness this chemical transformation to reduce the danger posed by the more than 1,000 uranium-contaminated sites scattered across the nation. (more…)
Earth & Environment - Apr 12, 2010 12:21 - 0 Comments
In China, a mining town amid toxic heaps
INDIANA U. (US)—Waters around the Xikuangshan mine in southwest China contain levels of antimony that are two to four orders of magnitude higher than normal, making it a unique laboratory to study the contaminant’s environmental impact. (more…)
Earth & Environment - Apr 3, 2010 11:39 - 0 Comments
Microbe ‘housekeepers’ clean up seaside
SHEFFIELD (UK)—Marine life could be protected from the lethal effects of plastic pollution by coastal microbes that interact with waste in the seabed. (more…)
Earth & Environment - Mar 18, 2010 13:32 - 0 Comments
‘Livestock revolution’ taking a toll
STANFORD (US)—The growing worldwide demand for meat is likely to have a significant impact on human health, the environment, and the global economy in the next 50 years, according to a new report by an international research team. (more…)
Earth & Environment - Feb 16, 2010 11:42 - 0 Comments
Giving roads a green grade
U. WASHINGTON (US)—A new rating system does for road construction what the Energy Star system does for appliances—provides a sustainability performance metric for new and reconstructed or rehabilitated projects. (more…)
Earth & Environment - Jan 13, 2010 17:38 - 0 Comments
Stirring up question of PCBs
U. IOWA—The Indiana Harbor and Ship Canal is contaminated with polychlorinated biphenyls (PCBs) and scientists are unsure whether planned dredging in the next few years will help or hurt the situation. (more…)
