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Tuesday, December 11, 2012

ScienceDaily: Top Environment News

ScienceDaily: Top Environment News


Conservatives can be persuaded to care more about environmental issues when couched in terms of fending off threats to 'purity'

Posted: 10 Dec 2012 01:37 PM PST

When it comes to climate change, deforestation and toxic waste, the assumption has been that conservative views on these topics are intractable. But new research suggests that such viewpoints can be changed after all, when the messages about the need to be better stewards of the land are couched in terms of fending off threats to the "purity" and "sanctity" of Earth and our bodies.

As Amazon urbanizes, rural fires burn unchecked

Posted: 10 Dec 2012 01:08 PM PST

Many Amazonians are moving out of the countryside, in search of economic opportunities in newly booming Amazonian cities. The resulting depopulation of rural areas, along with spreading road networks and increased drought, are causing more and bigger fires to ravage vast stretches, say researchers in a new study.

Inspiration from a porcupine's quills

Posted: 10 Dec 2012 01:08 PM PST

Researchers hope to exploit the porcupine quill's unique properties to develop new types of adhesives, needles and other medical devices.

Biologists engineer algae to make complex anti-cancer 'designer' drug

Posted: 10 Dec 2012 01:08 PM PST

Biologists have succeeded in genetically engineering algae to produce a complex and expensive human therapeutic drug used to treat cancer. Their achievement opens the door for making these and other "designer" proteins in larger quantities and much more cheaply than can now be made from mammalian cells.

Asteroid that killed the dinosaurs also wiped out the 'Obamadon'

Posted: 10 Dec 2012 01:08 PM PST

The asteroid collision widely thought to have killed the dinosaurs also led to extreme devastation among snake and lizard species, according to new research -- including the extinction of a newly identified lizard named Obamadon gracilis.

BPA in dog training aids: High estrogen-mimicking chemical concentrations found in dog training batons

Posted: 10 Dec 2012 01:07 PM PST

Sometimes orange, sometimes white, dog trainers often use plastic fetching batons called bumpers to teach dogs how to retrieve. But researchers have discovered that the dogs also may fetch a mouthful of potentially dangerous chemicals at the same time.

Quantifying corn rootworm damage

Posted: 10 Dec 2012 11:52 AM PST

Every year farmers spend a lot of money trying to control corn rootworm larvae, which are a significant threat to maize production in the United States and, more recently, in Europe. Researchers have been working on validating a model for estimating damage functions.

Gender differences found in seasonal auditory changes

Posted: 10 Dec 2012 11:52 AM PST

Auditory systems differ between sexes in sparrows depending on the season, a neuroscientist has found. The work adds to our knowledge of how the parts of the nervous system, including that of humans, are able to change.

Citizen science more than a century later: Ordinary people go online to track Gulf oil spill

Posted: 10 Dec 2012 11:52 AM PST

Researchers report on a new form of "citizen science," concluding that it can help assess health and environmental threats, such as those posed by the 2010 Gulf oil disaster. The researcher studied reports to an online Oil Spill Map and discovered that citizen science can red-flag potential hazards quickly and offers specific local information that often fails to make it into official scientific reports.

Wind and solar power paired with storage could power grid 99.9 percent of the time

Posted: 10 Dec 2012 10:35 AM PST

Renewable energy could fully power a large electric grid 99.9 percent of the time by 2030 at costs comparable to today's electricity expenses, according to new research. A well-designed combination of wind power, solar power and storage in batteries and fuel cells would nearly always exceed electricity demands while keeping costs low, scientists found.

Mining ancient ores for clues to early life

Posted: 10 Dec 2012 10:35 AM PST

An analysis of sulfide ore deposits from one of the world's richest base-metal mines confirms oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were actively feeding on sulfate in the ocean and influencing seawater chemistry during that geological period. The research provides new insight into how ancient metal-ore deposits can be used to better understand the chemistry of the ancient oceans -- and the early evolution of life.

Structure of carbon's 'Hoyle state' revealed

Posted: 10 Dec 2012 09:47 AM PST

A researcher has taken a "snapshot" of the way particles combine to form carbon-12, the element that makes all life on Earth possible. And the picture looks like a bent arm.

From fish to man: Research reveals how fins became legs

Posted: 10 Dec 2012 09:45 AM PST

Vertebrates' transition to living on land, instead of only in water, represented a major event in the history of life. Now, researchers provide new evidence that the development of hands and feet occurred through the gain of new DNA elements that activate particular genes.

Smuggler's tunnels: Detecting tunnels using seismic waves not as simple as it sounds

Posted: 10 Dec 2012 09:42 AM PST

You'd think it would be easy to use seismic waves to find tunnels dug by smugglers of drugs, weapons or people. You'd be wrong. Scientists are now working to improve the detection of shallow tunnels, with the ultimate goal of helping detect tunnels for areas where they could pose a threat.

Tracking gene flow in marine plant evolution

Posted: 10 Dec 2012 08:24 AM PST

A new method that could give a deeper insight into evolutionary biology. Biologists identified the segregation of genes that a marine plant underwent during its evolution. They found that the exchange of genes, or gene flow, between populations of a marine plant went westward from the Mediterranean to the Atlantic.

Onion soaks up heavy metal: Bioremediation with waste food

Posted: 10 Dec 2012 08:23 AM PST

Onion and garlic waste from the food industry could be used to mop up hazardous heavy metals, including arsenic, cadmium, iron, lead, mercury and tin in contaminated materials, according to a new research.

Elk bones tell stories of life, death, and habitat use at Yellowstone National Park

Posted: 10 Dec 2012 07:16 AM PST

Concentrations of elk bones and antlers provide baseline ecological data complementary to aerial counts Yellowstone National Park, adding a historical component to live observation. Because bones can last decades to centuries in the Yellowstone environment they can put relatively recent data from direct observation into broader context for managers looking at long-range planning, helping to sort out important changes from the noise of cyclical booms, busts and shifts in landscape use.

Ancient drawings in Peruvian desert: New light on the Nazca Lines

Posted: 10 Dec 2012 07:14 AM PST

Archaeologists gain insight into ancient desert drawings – by walking them. Archaeologists have completed highly detailed research into the Nazca Lines – enigmatic drawings created between 2,100 and 1,300 years ago in the Peruvian desert.

New approach could help resolve mountaintop mining issues

Posted: 10 Dec 2012 07:13 AM PST

A progressive approach to resolve the complex issues surrounding mountaintop mining needs to incorporate good civic science and meaningful routes for public involvement, researchers say.

What it is to be a queen bee?

Posted: 10 Dec 2012 05:07 AM PST

Queen sweat bees 'choose' the role of their daughters, according to a new study. The amount of food provided for the developing larvae determines whether the daughter becomes a worker or a new queen.

Higher carbon dioxide levels mean poorer wheat quality

Posted: 10 Dec 2012 05:06 AM PST

Rising levels of atmospheric carbon dioxide have a negative impact on the protein content of wheat grain and thus its nutritional quality.

First harbor of ancient Rome rediscovered

Posted: 10 Dec 2012 05:06 AM PST

Archaeologists had unearthed the great ancient monuments of Ostia, but the location of the harbor which supplied Rome with wheat remained to be discovered. Thanks to sedimentary cores, this "lost" harbor has finally been located northwest of the city of Ostia, on the left bank of the mouth of the Tiber.

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