Articles with the keyword: 
Platinum pollution issue gets measured
sea-maid submitted, created time 10 months 3 weeks (www.nature.com)
The planet has been covered with a fine layer of osmium thanks largely to efforts to clean up car exhausts, according to a global survey of rainwater. 
Gene Sequencing Technology Taken Up by Conservationists
Darkfrog submitted, created time 11 months 2 days (www.nature.com)
So perhaps gene sequencing hasn't advanced to the stage where people are actually talking about cloning individuals from the U.N.'s red list--the list of highly endangered animals--but there are a few tricks available to conservationists that weren't available even a few years ago.
Thanks to new techniques, the cost of sequencing large amounts of information has gone way down. This is giving zoologists a wonderful chance to study the extinction process by taking samples not only from living organisms but also from museum specimens
Amphibians may develop immunity to fatal fungus
piggy submitted, created time 11 months 2 weeks (www.eurekalert.org)
Amphibian populations are declining worldwide, principally because of the spread of the fungal disease chytridiomycosis, which is caused by the fungus Batrachochytrium dendrobatidis (Bd). Researchers know that some amphibian populations are more susceptible to the disease than others. Recent preliminary evidence, described in the April issue of BioScience, suggests also that individual amphibians can develop resistance to chytridiomycosis. Jonathan Q. Richmond of the U.S
New Theory on Largest Known Mass Extinction in Earth's History
sea-maid submitted, created time 11 months 2 weeks (www.sciencedaily.com)
The largest mass extinction in the history of the Earth could have been triggered by giant salt lakes whose emissions of halogenated gases changed the atmospheric composition so dramatically that vegetation was irretrievably damaged.
Peptides-on-demand: McGill researcher's radical new green chemistry makes the impossible possible
piggy submitted, created time 1 year 2 weeks (www.eurekalert.org)
McGill University chemistry professor Chao-Jun (C.J.) Li is known as one of the world leading pioneers in green chemistry, an entirely new approach to the science which eschews the use of toxic, petrochemical-based solvents in favor of basic substances like water and new ways of making molecules.
The environmental benefits of the green approach are obvious and significant, but following the road less traveled is also paying off in purely scientific terms
Seamounts May Serve As Refuges for Deep-Sea Animals That Struggle to Survive Elsewhere
sea-maid submitted, created time 1 year 3 weeks (www.sciencedaily.com)
Over the last two decades, marine biologists have discovered lush forests of deep-sea corals and sponges growing on seamounts (underwater mountains) offshore of the California coast. It has generally been assumed that many of these animals live only on seamounts, and are found nowhere else.
Billions of years ago, microbes were key in developing modern nitrogen cycle
piggy submitted, created time 1 year 3 weeks (www.eurekalert.org)
As the world marks the 200th anniversary of Charles Darwin's birth, there is much focus on evolution in animals and plants. But new research shows that for the countless billions of tiniest creatures – microbes – large-scale evolution was completed 2.5 billion years ago.
"For microbes, it appears that almost all of their major evolution took place before we have any record of them, way back in the dark mists of prehistory," said Roger Buick, a University of Washington paleontologist and astrobiologist.
All living organisms need nitrogen, a basic component of amino acids and proteins
Research ties tree mortality trends to climate warming
piggy submitted, created time 1 year 1 month (www4.nau.edu)
Global warming is speeding up the mortality of trees, and NAU research is providing some of the data to prove it.
Pete Fulé, an NAU associate professor in the School of Forestry and a director of the university's Ecological Restoration Institute, is a coauthor of "Widespread Increase of Tree Mortality Rates in the Western United States," an article to be published in the Jan. 23 issue of Science journal.
The study, led by principal authors Phillip J. van Mantgem and Nathan L. Stephenson, scientists with the Western Ecological Research Center for the U.S
North American tree deaths accelerate
sea-maid submitted, created time 1 year 1 month (www.nature.com)
Trees in the western United States and Canada are dying more quickly than they used to, but there is no corresponding increase in "recruitment," or the number of new seedling trees. The mortality rates, which are of the order of 1%, have in many cases doubled in just a couple of decades.
Report calls aerosol research key to improving climate predictions
sea-maid submitted, created time 1 year 2 months (www.eurekalert.org)
Scientists need a more detailed understanding of how human-produced atmospheric particles, called aerosols, affect climate in order to produce better predictions of Earth's future climate, according to a NASA-led report issued by the US Climate Change Science Program on Friday.
Clear skies, but not because the skies were cleared
Darkfrog submitted, created time 1 year 2 months (www.nature.com)
After the September 11 grounding of commercial traffic over the U.S., scientists and the public alike toyed with the idea that contrails and other side effects of air travel could affect the weather. New analyses, however, suggest that we may have jumped the gun and that the variations in temperature that were recorded on those days could be accounted for by other factors.
It isn't that contrails don't have an effect on climate, say scientists, but that their effect on those three particular days may have been exaggerated
Carbon dioxide levels may put the squeeze on squid
Darkfrog submitted, created time 1 year 2 months (www.nytimes.com)
This is a New York Times writeup of an issue discussed in PNAS. It seems that rising CO2 levels may disproportionately affect the most delicious I mean mysterious of all sea creatures: the squid.
As the oceans absorb more carbon dioxide from the air, they become more acidic. This can affect corals and other small organisms, but it can also affect bigger creatures, like large, ready-to-eat I mean shell-less mollusks
sea-maid submitted, created time 1 year 2 months (www.nature.com)
In a Commentary in this week's Nature, science policy experts Daniel Sarewitz of Arizona State University in Tempe and Richard Nelson of Columbia University in New York argue that removing carbon dioxide directly from the air is an effective way to tackle climate change. Nature News asks how advanced the plans to do this are.
One person's wreck is another person's low-tech solution
Darkfrog submitted, created time 1 year 3 months (www.nytimes.com)
Many of us have become disillusioned with traditional recycling, but I've got to love this one.
This is a neonatal incubator made out of car parts. The headlights become a heater. The fans control climate. Even the alarm is reused. In the United States, this would be a curiosity, but in the developing world, it could help health care workers avoid thousands of preventable infant deaths. Each incubator can be built for under $1000 (standard incubators cost forty times that).
But there isn't actually a serious incubator shortage in the developing world
Nobel physicist to run energy agency
sea-maid submitted, created time 1 year 3 months (www.nature.com)
By choosing Nobel-prizewinning physicist Steven Chu to head the Department of Energy (DoE), US President-elect Barack Obama has sent a clear message: solving climate issues in a world dependent on fossil fuels will depend on science coming up with new energy technologies.
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