Italian museum contamination studied

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Study: Climate opinions shift with temps NEW YORK (UPI) -- U.S. researchers say some people's beliefs on climate change can be swayed by something as simple as their own estimation of the day's temperature. Columbia University researchers surveyed about 1,200 people in the United States and Australia and found those who thought the current day was warmer than usual were more likely to believe in and feel concern about global warming than those who thought the day was unusually cold, a university release reported Wednesday. "Global warming is so complex, it appears some people are ready to be persuaded by whether their own day is warmer or cooler than usual, rather than think about whether the entire world is becoming warmer or cooler," lead author Ye Li of the Columbia Business School's Center for Decision Sciences said. "It is striking that society has spent so much money, time and effort educating people about this issue, yet people are still so easily influenced," he said. "By way of analogy, when asked about the state of the national economy, someone might look at the amount of money in his or her wallet, a factor with only trivial relevance," the study said. The study joins other strong evidence that opinions on climate and other issues can grow out of factors unrelated to scientific observations, the researchers said. "I'm not sure I'd say that people are manipulated by the weather," Li said. "But for some percentage of people, it's certainly pushing them around." Copyright 2011 by United Press International
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Thousands of starfish wash ashore in S.C. MYRTLE BEACH, S.C. (UPI) -- Thousands of starfish have washed up on a beach in South Carolina, victims of rough seas that dislodged them from their rock homes, wildlife officials said. Turbulent water caused by rough weather Monday night is thought to have washed the starfish ashore on the north end of Pawleys Island, The (Myrtle Beach) Sun News reported. Mandy Coble said she was walking with her children and friends on the island Monday night when they first saw "hundreds" of the starfish. By Tuesday morning, Coble said, there were "thousands ... piled on top of one another." Coble said she thought they were all dead, but wildlife officials said they are probably not. "It's harder to tell, but if you turn them over you'll see their little feet moving," Phil Maier, spokesman for the S.C. Department of Natural Resources' Marine Division, said. Island residents don't need to pick up the starfish or try to return them to the ocean, Maier said. "Nature will take care of them," he said. Copyright 2011 by United Press International
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Nanoparticles seen as damaging to soil KINGSTON, Ontario (UPI) -- Canadian researchers say nanoparticles, becoming more and more common in consumer products, may cause irreparable damage to soil systems and the environment. "Millions of tons of nanoparticles are now manufactured every year, including silver nanoparticles, which are popular as antibacterial agents," Virginia Walker, a professor in the department of biology in Queen's University in Ontario, said. "We started to wonder what the impact of all these nanoparticles might be on the environment, particularly on soil." The team acquired a sample of soil from a remote arctic site, believing this soil stood the greatest chance of being uncontaminated by any nanoparticles, which are now present in everything from socks to salad dressing and suntan lotion, a university release said Wednesday. "We hadn't thought we would see much of an impact, but instead our results indicate that silver nanoparticles can be classified as highly toxic to microbial communities," Walker said. "This is particularly concerning when you consider the vulnerability of the arctic ecosystem." The researchers first examined the indigenous microbe communities living in the uncontaminated soil samples before adding three different kinds of nanoparticles, including silver. After six months, a beneficial microbe essential to plant nutrition had all but disappeared, showing these important nitrogen-fixing species were highly susceptible to the toxic effects of silver nanoparticles. Copyright 2011 by United Press International
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Italian museum contamination studied VERONA, Italy (UPI) -- Mysterious blue pigments found on relics in Verona, Italy, have experts on conservation of archaeological artifacts saying they're concerned. The new-to-science pigments have been at the center of an archaeological "whodunit," an article in the weekly magazine of the American Chemical Society reported Wednesday. The mystery began last year when prehistoric flint tools in a museum in Verona began showing signs of contamination with bright blue pigments. Archaeologists said they were puzzled, never having encountered such color change before, especially on a hard stone like flint. Scientists have identified the pigments responsible for the colors, and in honor of Verona's role as hometown to star-crossed lovers in a certain Shakespeare play, have named the pigments Romeo Blue, Juliet Blue and Flint Blue. An ingredient in synthetic rubber mats that held the tools was suspected as the origin of the pigments. Archaeologists say the incident has led to a new awareness among museum conservation experts about unexpected interactions occurring between ancient treasures and the environments in which they are stored. Copyright 2011 by United Press International
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